A box contains shirts of different colors and sizes. The numbers of shirts are given in a table. What can we infer from the data?

P (blue shirt | large shirt) = P (blue shirt)

P (red shirt | large shirt) = P (large shirt)

P (shirt is medium and blue) = P (medium shirt)

Which method fairly chooses 1 from 12 candidates?

Assign each candidate a sequence while rolling a die and flipping a coin (e.g., 1-H).

Assign each candidate a 4-digit number using digits 0-4. Shuffle a bag of balls numbered 0-4 and pick one at a time.

Assign each candidate a 2-digit sequence from throwing two dice where order doesn't matter (e.g., 3-4, 2-6).

Carlos and Marcus surveyed 1,000 students in their university about their preference for coffee or tea. They found that 59% preferred coffee. Which statement is true?

The university's overall preference may not be equal to the sample proportion they found.

The sample proportion they found must represent the entire university's preference.

A pharmaceutical company prefers experimental studies to conducting surveys or observational studies. What is most likely the reason for this preference?

Observational studies and surveys usually do not provide results that are as accurate as experimental results.

Observational studies and surveys are more time consuming than experimental methods.

Observational studies and surveys are not as eco-friendly as experiments.

A teacher wants to compare scores on a geology exam for two classes. The difference between the sample means is 21.4. If the standard deviation of the distribution of the difference between sample means is 16.66, and she is testing the hypothesis at the 68% confidence level, which statement is true?

The difference between the two means is significant, so the alternative hypothesis must be accepted.

The difference between the two means is significant, so the null hypothesis must be accepted.

The difference between the two means is not significant, so the null hypothesis must be rejected.

A report on Americans’ attitudes toward eating out found that 73% of the respondents to the survey upon which the report is based think that people don’t eat out enough. Which of these factors is most relevant when evaluating the report?

61% of the respondents were restaurant owners.

82% of the respondents were between 25 and 50 years old.

29% of the respondents were taller than 6 feet.

A survey was conducted in Marcus and Carlos's university about students' attitudes towards eating out. The report found that 73% of the respondents think that students don’t eat out enough. Which of these factors is most relevant when evaluating the report?

A. 82% of the respondents were between 18 and 25 years old.

B. 52% of the respondents were from the Science department.

Which data set has a wider spread? Set A: {9, 11, 24, 11, 4, 20, 16, 7, 18, 15, 28, 6} Set B: {9, 12, 15, 3, 21, 24, 5, 9, 16, 21}

Set A has a wider spread because its range is greater.

Set B has a wider spread because its range is greater.

Set A has a wider spread because its mean is greater.

Set B has a wider spread because its mean is greater.

EOS: Probability and Statistics Review

12th Grade

•

30 Qs

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EOS: Probability and Statistics Review

Quiz

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Mathematics

•

12th Grade

•

Practice Problem

•

Medium

•

CCSS

7.SP.A.1, HSS.ID.A.4, 8.SP.A.4

+20

Standards-aligned

Nakia Hawkins

Used 1+ times

FREE Resource

30 questions

Show all answers

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

Marcus's music store sells CDs with a mean of 455 and a standard deviation of 65. What did Carlos find about this sales pattern?

Carlos found a 68% chance that fewer than 390 CDs are sold in a week.

Carlos found a 34% chance that fewer than 390 CDs are sold in a week.

Carlos found an 84% chance that more than 390 CDs are sold in a week.

Tags

CCSS.HSS.ID.A.4

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

What was the percentage of female students in the 18–24 age group in a university?

53.28%

58.44%

Tags

CCSS.8.SP.A.4

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

Marcus and two students conducted an experiment to understand the relationship between the height a parasail can reach and the speed of the motorboat towing it. Which equation represents the height of the parasail (y) based on the speed of the motorboat (x)?

y = 2.5x – 26.25

y = 0.4x

y = 2.5x

Tags

CCSS.6.EE.C.9

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

The graphs show the air humidity levels in Los Angeles for a week.
Which of the following regression lines would result in the smallest sum of the residuals?

Tags

CCSS.8.SP.A.2

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

Keisha is a swimmer. The table shows her 100-meter freestyle times over six years. Sketch a scatter plot and determine the closest correlation coefficient.

0.20

0.99

-0.20

Tags

CCSS.HSS.ID.C.8

MULTIPLE CHOICE QUESTION

2 mins • 4 pts

Which statement is true?

Correlation proves causation.

Causation requires correlation.

Correlation implies causation.

Tags

CCSS.HSS.ID.C.9

FILL IN THE BLANK QUESTION

2 mins • 4 pts

How many distinct license plates can be created in New York if a standard plate has 3 letters followed by 4 numbers, with repetition allowed?

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EOS: Probability and Statistics Review

30 questions

Marcus's music store sells CDs with a mean of 455 and a standard deviation of 65. What did Carlos find about this sales pattern?

What was the percentage of female students in the 18–24 age group in a university?

Marcus and two students conducted an experiment to understand the relationship between the height a parasail can reach and the speed of the motorboat towing it. Which equation represents the height of the parasail (y) based on the speed of the motorboat (x)?

The graphs show the air humidity levels in Los Angeles for a week.
Which of the following regression lines would result in the smallest sum of the residuals?

Keisha is a swimmer. The table shows her 100-meter freestyle times over six years. Sketch a scatter plot and determine the closest correlation coefficient.

Which statement is true?

How many distinct license plates can be created in New York if a standard plate has 3 letters followed by 4 numbers, with repetition allowed?

Carlos has calculated the probability of an event A and the probability of neither event A nor B occurring. Can Marcus figure out the probability of event B?

A company makes 70% of the phones with a touch screen and 55% with HD movie capability. 30% of the phones have both. What is the probability that a randomly chosen phone has either a touch screen or HD movie capability?

What is the probability that all five fair coins land heads?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

EOS: Probability and Statistics Review

30 questions

Marcus's music store sells CDs with a mean of 455 and a standard deviation of 65. What did Carlos find about this sales pattern?

What was the percentage of female students in the 18–24 age group in a university?

Marcus and two students conducted an experiment to understand the relationship between the height a parasail can reach and the speed of the motorboat towing it. Which equation represents the height of the parasail (y) based on the speed of the motorboat (x)?

The graphs show the air humidity levels in Los Angeles for a week. Which of the following regression lines would result in the smallest sum of the residuals?

Keisha is a swimmer. The table shows her 100-meter freestyle times over six years. Sketch a scatter plot and determine the closest correlation coefficient.

Which statement is true?

How many distinct license plates can be created in New York if a standard plate has 3 letters followed by 4 numbers, with repetition allowed?

Carlos has calculated the probability of an event A and the probability of neither event A nor B occurring. Can Marcus figure out the probability of event B?

A company makes 70% of the phones with a touch screen and 55% with HD movie capability. 30% of the phones have both. What is the probability that a randomly chosen phone has either a touch screen or HD movie capability?

What is the probability that all five fair coins land heads?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

The graphs show the air humidity levels in Los Angeles for a week.
Which of the following regression lines would result in the smallest sum of the residuals?