Problem Solving and Data Analysis 5-7 Review

Question 1

What is the marginal frequency for grade 9?

Accepted Answer

140

Question 2

Find the conditional probability that a student is in grade 12, given they want a regular day?

Accepted Answer

25%

Question 3

Statistics can best be defined as the study of:

Accepted Answer

Numerical Data

Question 4

The mean of P and Q is 20. The mean of R, S, and T is 60. What is the mean of P,Q, R, S, and T?

Accepted Answer

44

Question 5

What is the joint frequency that a student in 12th grade wants a regular school day?

Accepted Answer

75

Question 6

For which graph can we not use standard deviation as a measure of spread?

Accepted Answer

New York

Question 7

What is the difference in CRF for females wanting fewer days and more days of street cleaning?

Accepted Answer

4/15

Question 8

see photo

Accepted Answer

Randomly select 200 people as they enter the media center

Questions 8