Variability

Question 1

Mickey Mantle played for the New York Yankees for 18 years. Here is the number of home runs by Mantle per year: 13, 23, 21, 27, 37, 52, 34, 42, 31, 40, 54, 30, 15, 35, 19, 23, 22, 18 Compute the five-number summary of the data and determine which boxplot would best represent the data. a. b. c. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

C

Question 2

The table below shows the scores on a science test. John 75 Brett 80 Elizabeth 90 Cindy 100 Jake 75 Kenji 85 Rick 80 Joy 80 Raul 90 Suni 85 Make a visual display of the scores. a. c. b. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 3

On a box-and-whiskers plot, what does line segment 2 represent?

Revolt · Accepted Answer

first quartile

Question 4

A student takes ten exams during a semester and receives the following grades: 90, 85, 97, 76, 89, 58, 82, 102, 70, and 67. Find the five-number summary used in a boxplot. Which boxplot best represents the data? a. b. c. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

D

Question 5

The table below shows the scores on a math test. David 75 Aaron 75 Ashley 60 Gina 75 Andrew 75 Kei 95 Monica 100 Anna 60 Lucas 75 Jennifer 65 The number of standard deviations between a score and the mean score is indicated by a z-score. What was Ashley’s z-score on the math test?

Revolt · Accepted Answer

–1.1

Question 6

Use the box-and-whiskers plots below to answer questions about the math test scores of two different classes. Which class had the higher median score? Which class, as a whole, scored better on the test?

Revolt · Accepted Answer

Class A had the higher median score. Class A scored better on the test.

Question 7

Determine the standard deviation by filling in the table as part of your calculation. Consider the following data 6, 6, 10, 8, 10, 8

Revolt · Accepted Answer

1.63

Question 8

A boxplot helps to visualize the variability of a distribution. Five statistics form a boxplot, often referred to as the five-number summary for the distribution. How much of the data in a boxplot is below the third quartile?

Revolt · Accepted Answer

75% of the data is below the third quartile

Question 9

What is the box-and-whiskers plot used to show?

Revolt · Accepted Answer

variability

Question 10

The table below shows the scores on a math test. David 75 Aaron 75 Ashley 60 Gina 75 Andrew 75 Kei 95 Monica 100 Anna 60 Lucas 75 Jennifer 65 Make a visual display of the scores. a. c. b. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

A

Variability Answers

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