Answer: 0
Step-by-step explanation:
The probability of event A happening, then event B, is the probability of event A happening times the probability of event B happening given that event A already happened.
In this case, event A is the Captain hitting the pirate ship and event B is the pirate hitting the Captain's ship.
The Captain fires first, so his ship can't be sunk before he fires his cannons.
So, the probability of the Captain hitting the pirate ship is 2/5
If the Captain hit the pirate ship, the pirate has no chance of firing back.
So, the probability of the pirate hitting the Captain's ship given the Captain hitting the pirate ship is 0.
Three points of a function are graphed.
Which statement describes the function through the points?
The function is a direct variation function with a constant
of variation of 1.5.
The function is a direct variation function with a constant
of variation of 1.8.
The function is linear but is not a direct variation
function.
The function is not a linear function,
. (18, 30)
. (14, 24)
• (10, 18)
4
8
12
16 20 24 28 32 36
x
Answer:
The answer is C.
Step-by-step explanation:
I just took the test on edg and got a 100
The function is linear but is not a direct variation.
What is Direct Variation?Direct variations are defined as the functions of the form y = kx, where k is a constant.
Here when y increases, x increases and if y decreases, x also decreases.
Given is a function that passes through three points (18, 30), (14, 24) and (10, 18).
If the function is linear, the the slope must be constant.
Slope = Change in y coordinates / Change in x coordinates
Consider (18, 30) and (14, 24).
Slope = (24 - 30) / (14 - 18) = -6 / -4 = 3/2
Consider (14, 24) and (10, 18).
Slope = (18 - 24) / (10 - 14) = 3/2
Since slope is constant, function is linear.
Let y = mx + c be the equation of the function, where m is the slope and c is the y intercept.
If the function is direct variation, c = 0.
Substitute (10, 18) in to the equation.
18 = (3/2 × 10) + c
⇒ c = 3
It is not direct variation.
Hence the function is linear but is not a direct variation.
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Find the coordinates of the fourth vertex that completes the construction of the rectangle on the coordinate plane.
A(3,-7)
B(7,-3)
C(-3,7)
D(-7,3)
Answer:
The correct answer would be C (-3, 7)
Step-by-step explanation:
The first coordinate is the x (-3) and the second is the y (+7); therefore, the coordinate of the fourth vertex on the plane is (-3, 7).
Answer:
your answer should be C (-3, 7)
Step-by-step explanation:
brainliest pls
Have a nice day
State the type of hypothesis test to be used in the following situation: Researchers hoped to determine whether time spent watching television is associated with cardiovascular fitness. Subjects were asked how many hours per day they watch television and were classified as physically fit if they scored in the excellent or very good category on a step test. The data obtained is as follows: Physically Fit Not Physically Fit 0 hours 35 147 1-2 hours 101 629 3-4 hours 28 222 5 or more hours 4 34 Determine if the association the researchers were interested in exists or not.
Answer:
t-test for difference in slopes
no association exists
Step-by-step explanation:
t-test can be used to determine signifiance in difference in slopes of of fit vs time and not fit vs time graph
The data shows that as number of hours spent watchnig television increases, there is no increasing or decreasing trend in number of people fit or not fit. The number of people fit or not fit seems to be distributed around 629 for 1-2 hours of watching television. There trend is not consistent in both cases with increasing number of hours
Using the traditional formula, a 95% CI for p1 − p2 is to be constructed based on equal sample sizes from the two populations. For what value n (= m) will the resulting interval have width at most 0.4 irrespective of the results of the sampling? (Round your answer up to the nearest whole number.)
Answer:
The minimum sample size required is 49.
Step-by-step explanation:
The (1 - α)% confidence interval for the difference between two proportions is:
[tex]CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\ \sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}}[/tex]
*The sample size is considered equal in this case.
The width of the interval is at most 0.40.
Then the margin of error of the interval will be:
MOE = Width ÷ 2 = 0.20
The formula of the margin of error is:
[tex]MOE= z_{\alpha/2}\ \sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}}[/tex]
Assume that the two sample proportion values are 0.50.
The critical value of z for 95% confidence level is:
[tex]z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96[/tex]
Compute the sample size required as follows:
[tex]MOE= z_{\alpha/2}\ \sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}}[/tex]
[tex]n=[\frac{z_{\alpha/2}\times \sqrt{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}}{MOE}]^{2}[/tex]
[tex]=[\frac{1.96\times \sqrt{0.50(1-0.50)+0.50(1-0.50)}}{0.20}]^{2}\\\\=48.02\\\\\approx 49[/tex]
Thus, the minimum sample size required is 49.
What is the length of the radius of a circle whose area is 100 pie(3.14)?
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 400 babies were born, and 340 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective? nothingless than pless than nothing (Round to three decimal places as needed.) Does the method appear to be effective? Yes, the proportion of girls is significantly different from 0.5. No, the proportion of girls is not significantly different from 0.5.
Answer:
(a) 99% confidence interval for the percentage of girls born is [0.804 , 0.896].
(b) Yes, the proportion of girls is significantly different from 0.50.
Step-by-step explanation:
We are given that a clinical trial tests a method designed to increase the probability of conceiving a girl.
In the study 400 babies were born, and 340 of them were girls.
(a) Firstly, the pivotal quantity for 99% confidence interval for the population proportion is given by;
P.Q. = [tex]\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ~ N(0,1)
where, [tex]\hat p[/tex] = sample proportion of girls born = [tex]\frac{340}{400}[/tex] = 0.85
n = sample of babies = 400
p = population percentage of girls born
Here for constructing 99% confidence interval we have used One-sample z proportion statistics.
So, 99% confidence interval for the population proportion, p is ;
P(-2.58 < N(0,1) < 2.58) = 0.99 {As the critical value of z at 0.5% level
of significance are -2.58 & 2.58}
P(-2.58 < [tex]\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < 2.58) = 0.99
P( [tex]-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < [tex]{\hat p-p}[/tex] < [tex]2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ) = 0.99
P( [tex]\hat p-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < p < [tex]\hat p+2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ) = 0.99
99% confidence interval for p = [[tex]\hat p-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] , [tex]\hat p+2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex]]
= [ [tex]0.85-2.58 \times {\sqrt{\frac{0.85(1-0.85)}{400} } }[/tex] , [tex]0.85+2.58 \times {\sqrt{\frac{0.85(1-0.85)}{400} } }[/tex] ]
= [0.804 , 0.896]
Therefore, 99% confidence interval for the percentage of girls born is [0.804 , 0.896].
(b) Let p = population proportion of girls born.
So, Null Hypothesis, [tex]H_0[/tex] : p = 0.50 {means that the proportion of girls is equal to 0.50}
Alternate Hypothesis, [tex]H_A[/tex] : p [tex]\neq[/tex] 0.50 {means that the proportion of girls is significantly different from 0.50}
The test statistics that will be used here is One-sample z proportion test statistics;
T.S. = [tex]\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ~ N(0,1)
where, [tex]\hat p[/tex] = sample proportion of girls born = [tex]\frac{340}{400}[/tex] = 0.85
n = sample of babies = 400
So, the test statistics = [tex]\frac{0.85-0.50}{\sqrt{\frac{0.85(1-0.85)}{400} } }[/tex]
= 19.604
Now, at 0.01 significance level, the z table gives critical value of 2.3263 for right tailed test. Since our test statistics is way more than the critical value of z as 19.604 > 2.3263, so we have sufficient evidence to reject our null hypothesis due to which we reject our null hypothesis.
Therefore, we conclude that the proportion of girls is significantly different from 0.50.
To construct a 99% confidence interval for the percentage of girls born, calculate the sample proportion and use it to construct the confidence interval. The method appears to be effective.
Explanation:To construct a 99% confidence interval for the percentage of girls born, we first need to calculate the sample proportion. In this case, the sample proportion of girls is 340/400 = 0.85. Using this proportion, we can construct the confidence interval using the formula.
Confidence Interval = sample proportion ± z x √((sample proportion x (1 - sample proportion)) / sample size). Calculating the confidence interval, we find that it is 0.808 to 0.892. Since this interval does not include the value of 0.5, the method appears to be effective.
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As a salesperson, you are paid $52 per week plus $3 per sale. This week you want your pay to be at least $100. Write an inequality for the number of sales you need to make, and describe the solutions.
Answer:
s≥16
Step-by-step explanation:
3s+52≥100
3s≥100-52
3s≥48
s≥48/3
s≥16
The solution to the inequality is x ≥ 16.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
Let x be the number of sales you need to make.
The total pay you receive will be $52 + $3x.
Since you want your pay to be at least $100, we can write the inequality:
52 + 3x ≥ 100
Solving for x, we get:
3x ≥ 48
x ≥ 16
Therefore,
The solution to the inequality is x ≥ 16.
This means that you need to make at least 16 sales to earn at least $100 this week.
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What is the length of segment TV?
Answer:
38 units
Step-by-step explanation:
VS = TS
39 = 6x – 3
39 + 3 = 6x
42 = 6x
X = 7
TV = 2(VR)
TV = 2 ( 2(7) + 5)
TV = 38 units
Brainiest please?
A trapezoid on a square. The square has side lengths of 12 feet. The trapezoid has a base of 6 feet, height of 3 feet, and top side length of 4 feet. Tariq is a swimming-pool designer. He is known for his irregular-shaped swimming pools. The bottom of this pool will be covered in tile. The area of the pool that is covered in tile is ft2.
Answer:
159
Step-by-step explanation:
Answer:
159
Step-by-step explanation:
If you bought a camera in good condition from a friend, would you pay the same as you would if you bought the same item from a stranger? A researcher at Cornell University want to know how friendship might affect simple sales such as this. She randomly divided 15 subjects into two groups and gave each group the same description of a used camera. One group was told to imagine buying from a friend whom they expected to see again. The other group was told to imagine buying from a stranger. The researcher recorded the price each person was willing to pay for the camera.
Final answer:
The degree of imperfect information varies depending on the transaction type. Buying apples or dinner locally involves relatively low imperfect information because of the immediate availability of visual or experiential information, whereas buying a used laptop or ordering flowers online involves higher imperfect information due to the lack of direct product interaction.
Explanation:
Imperfect Information in Economic Transactions
The concept of imperfect information refers to a situation where one or both parties in a transaction do not have all the necessary information to make an entirely informed decision. When assessing the degree of imperfect information in various scenarios, it is essential to consider the transparency and availability of information about the product or service, as well as the trustworthiness of the source providing it.
Buying apples at a roadside stand: The degree of imperfect information is expected to be relatively low as the buyer can visually inspect the apples and assess their quality on the spot.
Buying dinner at the neighborhood restaurant: Imperfect information is also expected to be relatively low since, through prior experience or reputation, one usually has an idea about the quality of food and service.
Buying a used laptop computer at a garage sale: Imperfect information would be relatively high as the buyer may not have the expertise to thoroughly check the laptop's condition or know its history.
Ordering flowers over the internet for a friend in a different city: The degree of imperfect information could be high since the buyer cannot see the actual flowers being sent and must rely on the vendor's description and reputation.
These situations highlight how different market transactions harbor varying levels of imperfect information, which can influence a buyer's willingness to pay and overall decision-making process, according to the principles of behavioral economics. Unlike mainstream economics, which assumes rational actors with perfect information, behavioral economics acknowledges that decisions are often made based on relative outcomes and perceived value rather than absolute savings.
It cost Jodi $44.88 to buy 12 gallons of gas.what was the cost per gallon of gas?
Answer: $3.74
Step-by-step explanation: 44.88/12=3.74
Answer:
Jodi paid $3.74 for each gallon of gas
Step-by-step explanation:
Select the correct answer,
Why are online payment services necessary?
OAIndividuals who sell items online cannot afford
OB. It is too risky to use credit cards online, and on
C. Government regulations require all online tran
OD
Online payment services are the only payment
Answer:
B. It is too risky to use credit cards online, and online payment services have better security because of the increasing number of hackers that may steal money from your bank account.
Step-by-step explanation:
Put the fraction in order from least to greatest 1/8, 1/3, 1/6
Answer:
You have to make them equal first. Start with that.
1/8 --> 3/24
1/6 ---> 4/24
1/3 --> 8/24
Now, order them.
1/8, 1/6. 1,3
Kirby ran three-fourths of a half mile and dropped out of the 800 meter race. Her
pace was 12 miles an hour until the point she dropped out of the race. About how
many minutes did she run approximately?
Answer:
1.88 minutes
Step-by-step explanation:
This question can be solved using speed, distance and time concept along-with use of computing fractions.
Given
Distance ran by Kirby = 3/4 of half mile
= 3/4 of 1/2 mile = 3/4 * 1/2 mile = 3/8 mile.
Speed of Kirby until she dropped out of race = 12 miles/hour
Formula to calculate time = Distance/Time
substituting value of speed of Kirby and distance covered by Kirby
Time = [tex](3/8) / 12 = 3/(8*12) = 1/32 \ hour[/tex]
Since one hour has 60 minutes 1/32 hour = (1/32) * 60 minutes = 1.88 minutes
A bucket of water is one quarter full. You add 3.6L to the bucket. Now it has 18L in it. How much water will the bucket hold?
Answer:
57.6 Liters
Step-by-step explanation:
18 - 3.6 to find what 1 quarter is
14.4 * 4 to find the total amount it can hold
= 57.6
Help? Question are above. 15 points
Answer:
1).
7, rational
2).
2.36 (repeating), irrational
3).
[tex]Simplify:\frac{734}{1000} / \frac{2}{2} = \frac{367}{500}[/tex]
4).
[tex]Simplify: \frac{2588}{1000} /\frac{4}{4} =\frac{647}{250} \\If.you.want.to.convert.it.to.a.mixed.fraction: 2\frac{147}{250}[/tex]
The recycling bin in the shape of a rectangular prism is 15.5 inches long, 8 inches wide and 7 inches high. The recycling bins need to be emptied when it is 80% full. What is the total amount needed, to the nearest cubic inch, before the recycle bin is ready to empty?
Answer:
694 cubic inches
Step-by-step explanation:
Dimension of prism
Length = 15.5 inches
width = 8 inches
height = 7 inches
Volume of regular prism is given by area of base * height
area of base = length * width ( as bin is rectangular)
area of base = 15.5 * 8 square inches = 124 square inches
Volume of regular prism = area of base * height
= 124 * 7 cubic inches = 868 cubic inches
_________________________________________________
868 cubic inches is the full capacity of the recycling bin
it is given that recycling bins need to be emptied when it is 80% full
so we need to find the 80% capacity of recycling bin
80% capacity of recycling bin = 80/100 * full capacity of the recycling bin
= 0.8 * 868 cubic inches = 694.4 cubic inches
694.4 cubic inches is the amount needed before the recycle bin is ready to empty .
But question says answer should in nearest cubic inch
hence answer is 694 cubic inches
Your total FICA contribution which includes Social Security and Medicare is 15.3% of your salary. 12.4% of your FICA contribution is for Social Security. Your annual income is $67,525. What will be the total deduction be for you and your employer for Medicare?
Answer:
$1,958.23
Step-by-step explanation:
Annual income = $67,525
Total FCIA = 15.3% of salary
Since my annual income is $67,525 the FCIA contribution = 15.3%.
But 12.4% is for Social Security.
The remaining 2.9%(15.3% - 12.4%) will be for Medicare taxes.
The total deduction for I and my employer for medicare taxes will be:
2.9% * $67,525
= $1,958.225
The total deduction for medicare would be: $1,958.23
Note: Assuming we were asked to calculate only employee's medicare, the deduction would be 50% of $1,958.23.
Answer:
1958
Step-by-step explanation:
What is the rate of change of the following function?
Answer:
You did not provide any function...therefore, i cant give you a proper answer.
Step-by-step explanation:
A bag of chips is 24 ounces. A serving size is 3/4 ounce. How many servings are in the bag of chips?
Answer:
The correct answer to the following question will be "32 servings".
Step-by-step explanation:
The given values are,
A bag of chips = 24 ounces
Serving size = 3/4 ounces
Servings = ?
Now,
On dividing "24 ounces" by "3/4 ounce", we get
⇒ [tex]\frac{24}{\frac{3}{4}}[/tex]
⇒ [tex]24\times \frac{4}{3}[/tex]
⇒ [tex]8\times 4[/tex]
⇒ [tex]32[/tex]
Thus, the bag of chips contains "32" servings.
Final answer:
To determine the number of servings in a 24-ounce bag of chips with a serving size of 3/4 ounce, divide the total weight by the serving size, resulting in 32 servings.
Explanation:
The student has asked a question about how to calculate the number of servings in a bag of chips given its total weight and the size of each serving. This is a mathematics problem involving division.
To find out the number of servings in a 24-ounce bag of chips where each serving is 3/4 ounce, you divide the total weight of the bag by the weight of a single serving:
Number of servings = Total weight of the bag / Weight of one serving
Number of servings = 24 oz / (3/4 oz)
To divide the fractions, you multiply by the reciprocal of the serving size, which is:
Number of servings = 24 oz × (4/3)
Number of servings = 32
Therefore, there are 32 servings in the 24-ounce bag of chips.
A research firm supplies manufacturers with estimates of the sales of their products from samples of stores. Marketing managers often look at the sales estimates and ignore sampling error. An SRS of 50 stores this month shows mean sales of 41 units of a particular appliance with a standard deviation of 11 units. During the same month last year, an SRS of 52 stores gave mean sales of 38 units of the same appliances with a standard deviation of 13 units. An increase from 38 to 41 is a rise of 7.9 % . The marketing manager is happy because sales are up 7.9 % . (a) Give a 95 % confidence interval for the difference in mean number of units of the appliance sold at all retail stores. (Enter your answer rounded to three decimal places.)
Answer:
lower interval = -1.715
upper interval = 7.715
Step-by-step explanation:
The 95% confidence interval for the difference in mean number of units of the appliance sold at all retail stores for this case is [-1.667, 7.667]
How to find the confidence interval for difference in mean?Supposing the samples are large, let we're given that:
For first sample:
[tex]n_1[/tex] =sample size[tex]s_1[/tex] = sample standard devation[tex]\overline{x}_1[/tex] = sample meanFor second sample:
[tex]n_2[/tex] =sample size[tex]s_2[/tex] = sample standard devation[tex]\overline{x}_2[/tex] = sample meanSuppose the confidence level be p% = p/100 in decimal, then the level of significance would be [tex]\alpha = 1 - p/100[/tex]
Then, the margin of error would be:
[tex]MOE = Z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1} + \dfrac{s_2^2}{n_2}}[/tex]
where [tex]Z_{\alpha/2}[/tex] is the critical value of Z at level of significance [tex]\alpha[/tex]
The confidence interval would be:
[tex]CI = \overline{x}_1 - \overline{x}_2 \pm MOE[/tex]
Thus, for this case, we're specified that:
For first sample (SRS this month):
[tex]n_1[/tex] =sample size = 50[tex]s_1[/tex] = sample standard devation = 11[tex]\overline{x}_1[/tex] = sample mean = 41For first sample(SRS last month):
[tex]n_2[/tex] =sample size = 52[tex]s_2[/tex] = sample standard devation = 13[tex]\overline{x}_2[/tex] = sample mean = 38Level of significance = 1 - 95/100 = 0.05
The critical value of z at 0.05 level of significance (from the tables of critical value of Z) is: [tex]Z_{0.05/2} = 1.96[/tex]
Thus, the margin of error would be:
[tex]MOE = Z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1} + \dfrac{s_2^2}{n_2}}\\\\\\MOE = 1.96\sqrt{\dfrac{11^2}{50} + \dfrac{13^2}{52}}\\\\MOE \approx 4.667[/tex]
Thus, the confidence interval would be:
[tex]CI = \overline{x}_1 - \overline{x}_2 \pm MOE\\CI \approx 41 - 38 \pm 4.667\\CI \approx 3 \pm 4.667\\CI \approx [3 - 4.667, 3 + 4.667] = [-1.667, 7.667][/tex]
Thus, the 95% confidence interval for the difference in mean number of units of the appliance sold at all retail stores for this case is [-1.667, 7.667]
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There are 20 flowers. I have 10 how many are there
Answer: 10
Step-by-step explanation: because you subtract it by 10
20-10= 10
What is the discriminant of the quadratic equation 0 = -x -4x -2
Answer:
search on google
Step-by-step explanation:
Simplify 64 x 3 y 3 z 2 24 x y 4 z 4
Answer:
88x+4y+7z+6
Step-by-step explanation:
depends on how u write it take a pic next time please
I. Red help pls bros
Answer:
the 3rd one
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
because it has too many on one side
Suppose that the function g is defined for all real numbers as follows
Answer:
-9
0
3
Step-by-step explanation:
-(-2-1)^2
-(1-1)^2
x>2 , so g(x) = 3
x ^2 +y ^2 −4x+12y−24=0 What is the center of this circle ?
(2, -6) is the center of the circle.
To find the center of the circle, we need to rewrite the given equation in standard form:
[tex]x^2 - 4x + y^2 + 12y = 24[/tex]
We can complete the square to put it into the standard form:
[tex]x^2 - 4x + 4 + y^2 + 12y + 36 = 24 + 4 + 36\\\\(x - 2)^2 + (y + 6)^2 = 64[/tex]
Now we can see that the center of the circle is (2, -6).
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The center of the circle represented by the equation x^2 + y^2 −4x +12y−24=0 is (2, -6), which is determined by completing the square for both x and y terms.
To determine the center of a circle given by the equation x^2 + y^2 −4x +12y−24=0, we need to complete the square for both the x and y terms.
Step 1: Rearrange the equation by grouping x terms and y terms together: x^2 −4x + y^2 +12y = 24.
Step 2: Complete the square for the x terms and y terms: (x^2 −4x + 4) + (y^2 +12y + 36) = 24 + 4 + 36.
Step 3: Simplify the equation: (x − 2)^2 + (y + 6)^2 = 64.
Step 4: In the standard form of a circle equation, (x − h)^2 + (y − k)^2 = r^2, the center is at (h, k). Therefore, the center of the given circle is (2, -6).
Halla el lafo de un cuadrado tal que la suma de su área más su perímetro es numéricamente igual a 252
We analyzed the relationship between the budgets (in millions of dollars) and the U.S. Box Office Sales (in millions of dollars) for 75 popular movies. The scatterplot showed a weak positive association with a linear form. Here are the StatCrunch linear regression results:
Simple linear regression results:
Dependent Variable: US_Box_Office
Independent Variable: Budget US_Box_Office
IMDb_Rating Rotten Tomatoes = -57.599288 + 17.919209 IMDb_Rating Sample size: 75
R(correlation coefficient) = 0.79786226
R-sq = 0.63658418
Estimate of error standard deviation: 12.916488
Which number describes the percentage of variability in Rotten Tomato ratings that is explained by the changes in IMDb ratings as described by the regression line? This is the slope of the regression line. It describes the predicted change in Rotten Tomato ratings when IMDb ratings increase by one.
a. 0.80
b. 0.64
c. 12.9
d. 17.9
Answer:
According to the information from the exercise, we can deduce that the regression technique is the method of analysis for IMDb ratings and Rotten tomato ratings, so we have a dependent variable such as rotten tomatoes and the independent one that is IMDb-rating. We can say that in this analysis that the variation of the dependent variable is explained by the coefficient of determination, we observe that the coefficient of determination is 0.63 if we convert it into a percentage we obtain that it is equal to 63.65% and we approach 64%, with which which we affirm that it is equal to 64, so this value is the influence that the IMDb ratings generated on the ratings of rotten tomatoes
The percentage of variability in Rotten Tomato ratings explained by the changes in IMDb ratings is represented by the R-squared value of 0.64. Therefore, the correct answer is B. 0.64.
To determine the percentage of variability in Rotten Tomatoes ratings that is explained by the changes in IMDb ratings as described by the regression line, we need to look at the [tex]\( R^2 \)[/tex] value (coefficient of determination).
In the results provided:
[tex]\[R^2 = 0.63658418\][/tex]
This [tex]\( R^2 \)[/tex] value represents the proportion of variability in the dependent variable (Rotten Tomatoes ratings) that can be explained by the independent variable (IMDb ratings) in the regression model.
So, the percentage of variability in Rotten Tomato ratings that is explained by changes in IMDb ratings is:
[tex]\[R^2 = 0.63658418 = 0.64 \text{ or} 64%)\][/tex]
Therefore, the correct answer is:
b. 0.64
What is the covariance for the number of times a head appears for each coin? Suppose you have two unfair coins. Coin 1, denoted as C1, has a probability of landing heads with probability 2/5 and tails with probability 3/5. Coin 2, denoted as C2, has a probability of landing heads with probability 1/3 and tails with probability 2/3. Toss coin 1 first. If coin 1 lands heads, toss coin 1 again. If coin 1 lands tails, then toss coin 2.
Answer:
Check the explanation
Step-by-step explanation:
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