Stats: Unit 1 Review

Question 1

What is the upper boundary of the second class?

Accepted Answer

63.5

Question 2

Homestyle Books Inc sold 1220 books last month and 35% of them were novels. How many novels did they sell?

Accepted Answer

427

Question 3

Calculate the five-number summary of the data: 24, 17, 8, 4, 15, 23, 18

Accepted Answer

4, 8, 17, 23, 24

Question 4

A survey of 3775 people revealed that 75% of those surveyed have a college degree. Parameter or Statistic?

Accepted Answer

Statistic

Question 5

Number of siblings that students in your statistics class have. Which level of measurement is this?

Accepted Answer

ratio

Question 6

A distribution of GPAs has a mean of 2.51 and standard deviation of 0.41. What percent of GPAs are less than 2.10?

Accepted Answer

16

Question 7

Given the data: 2, 3, 4, 5, 25, which of these could be the standard deviation?

Accepted Answer

9.7

Question 8

In the graph shown, which letter represents the mean?

Accepted Answer

A

Question 9

Determine the number of scores between 46.5 and 97.5.

Accepted Answer

28

Question 10

If a data value has a z-score of 2.2, it means...

Accepted Answer

the data value is 2.2 standard deviations above the mean

Question 11

A fair die is rolled. What is the probability that a number other than 6 comes up?

Accepted Answer

5/6

Questions 11