Which statement best describes this graph?

There is a cluster around 38-40.

There is a gap in the data between 39-40.

Select the true statement.

There is a cluster of data between 0 and 2

The distribution is clearly skewed left

5-number summary Min: 40 Q1: 90 Median: 105 Q3: 110 Max: 125 Are there any outliers?

There is a low outlier but no high outlier

There is a high outlier but no low outlier

There is both a low and high outliers

Which of the following is the definition of a "point estimate?"

The midpoint of a confidence interval.

A sample of 20 cupcakes found the interval for calories to be (150, 350). Which is the correct interpretation of the 95% confidence interval?

We are 95% confident that the true mean calorie content in cupcakes is between 150 and 350 calories.

We are 95% confident that the true mean calorie content can be found with a sample of 150 to 350 cupcakes.

We are 95% confident that a sample of 20 cupcakes will find 250 calories per cupcake.

A sample of 20 cupcakes found the interval for calories to be (150, 350). Which is the correct interpretation of the 95% confidence interval?

We are 95% confident that the true mean calorie content in cupcakes is between 150 and 350 calories.

We are 95% confident that the true mean calorie content can be found with a sample of 150 to 350 cupcakes.

We are 95% confident that a sample of 20 cupcakes will find 250 calories per cupcake.

Which of the following is the FIRST step of a hypothesis test?

State your null & alternative hypotheses

A Type I error is when:

We reject the null hypothesis when it is actually true

We obtain the wrong test statistic

We fail to reject the null hypothesis when it's actually false

We reject the alternate hypothesis when it's actually true

Which of the following represents the appropriate null & alternative hypotheses? The mean height of women is greater than 64"

H₀: μ > 64" Hₐ: μ ≠ 64"

Sally reads a newspaper report claiming that 12% of all adults in the U.S. are left-handed. She decides to test this claim. Sally selects a random sample of 55 classmates and finds that 9 were left-handed. Does this provide sufficient evidence that the proportion of lefties in Sally’s school is different than the national figure? Use α = 0.01. Which is the correct conclusion for this test?

Since p-value = 0.319 > 0.01, I fail to reject H 0 . There is not enough evidence to suggest a difference.

Since p-value = 0.319 < 0.01, I reject H 0 . There is enough evidence to suggest a difference.

Since p-value = 0.319 > 0.01, I reject H 0 . There is enough evidence to suggest a difference.

Since p-value = 0.319 < 0.01, I fail to reject H 0 . There is enough evidence to suggest a difference.

A sports publication states that 32% of married men cannot watch football games because their wives prevent it. You think that this is untrue. What is your null hypothesis?

The proportion of married men who cannot watch football because their wives prevent it is 0.32.

The proportion of married men who cannot watch football because their wives prevent it is greater than 0.32.

The proportion of married men who cannot watch football because their wives prevent it is less than 0.32.

The proportion of married men who cannot watch football because their wives prevent it is not 0.32.

The test results of 66 students were compared to whether the students completed a provided review sheet. Is there an association between completing the review sheet and passing the test?

Yes, it was more likely that students who passed, completed the review sheet

Yes, it was more likely that students who failed, completed the review sheet

Based on the two way relative frequency table, is there an association between gender and whether or not a person prefers Hip Hop or Country?

No, there is no association between gender and music preference.

Yes, males are more likely to listen to hip hop than females.

Yes, females are more likely to listen to hip hop than males.

Adam's Z-score on a test is +2.50. What does this mean?

He scored 2.5 standard deviations above the average.

Adam's score has a 2.5% chance of being better than any other randomly selected score.

Adam's test score was better than 25% of his peers.

AP STAT REVIEW-3

Authored by Colin Ferreira

Mathematics

12th Grade

CCSS covered

Used 6+ times

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50 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Given the probabilities P(A) =0.4 and P(A∪B) =0.6, what is the probability P(B): If A and B are mutually exclusive? If A and B are independent?

a) 0.2; 0.4

b) 0.2; 0.33

c) 0.33; 0.2

d) 0.6; 0.33

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.B.8

CCSS.HSS.CP.B.7

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The probability that a randomly chosen American is a Republican is 0.35. What is the probability that in a sample of 10 Americans, that at least 1 will be a Republican?

a) 0.9865

b) 0.2275

c) 0.0725

d) 0.0135

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

CCSS.7.SP.C.8

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

P(Pizza ∩ Water) =

62/182

120/400

58/400

140/400

Tags

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

P(Sandals|Pants):

4/20

6/15

1/2

2/7

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

CCSS.HSS.CP.B.6

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A group of 125 pick up truck owners were asked what brand truck they owned and whether it had four-wheel drive. The results are given in the two-way table.
You randomly select one truck owner. Which one of the following is true about the events "Owner has a Chevy" and "Owner's truck has four-wheel drive"?

These two events are mutually exclusive and independent.

These two events are mutually exclusive, but not independent.

These two events are not mutually exclusive, but they are independent.

These two events are neither mutually exclusive nor independent.

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

CCSS.HSS.CP.A.2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

At a California college, 19% of the students speak Spanish, 7% speak French, and 4% speak both languages. A student is chosen at random from the college. What is the probability that the student speaks Spanish if she speaks French?

0.220

0.211

0.040

0.571

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the shape of the data?

symmetrical

skewed left

skewed right

bell curve

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

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AP STAT REVIEW-3

Given the probabilities P(A) =0.4 and P(A∪B) =0.6, what is the probability P(B): If A and B are mutually exclusive? If A and B are independent?

The probability that a randomly chosen American is a Republican is 0.35. What is the probability that in a sample of 10 Americans, that at least 1 will be a Republican?

P(Pizza ∩ Water) =

P(Sandals|Pants):

At a California college, 19% of the students speak Spanish, 7% speak French, and 4% speak both languages. A student is chosen at random from the college. What is the probability that the student speaks Spanish if she speaks French?

What is the shape of the data?

Which statement best describes this graph?

Where is the gap in the data?

Select the true statement.

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Popular Resources on Wayground

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