Name:    Chapter 13 Pre Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Organize the following data using a line plot.

17, 8, 17, 14, 11, 18, 8, 11, 14, 18, 8, 17, 11, 14, 8, 14, 17, 11, 18, 17, 14, 17

 a. d. b. e. c.

2.

A certain data set is organized using the following line plot.

What is the range of the data set?

 a. d. b. e. c.

3.

Find the data set that was used to produce the following line plot.

 a. 19, 9, 19, 12, 14, 16, 9, 14, 12, 16, 9, 19, 16, 12, 9, 12, 19, 14, 16, 19, 12, 19 d. 19, 9, 19, 12, 14, 16, 9, 14, 12, 14, 9, 19, 14, 12, 9, 12, 19, 14, 16, 19, 12, 19 b. 19, 9, 19, 12, 14, 16, 9, 14, 12, 16, 9, 19, 14, 12, 9, 12, 19, 14, 16, 19, 12, 16 e. 19, 9, 19, 12, 14, 16, 9, 14, 12, 16, 9, 19, 14, 12, 9, 12, 19, 14, 16, 19, 12, 19 c. 19, 9, 19, 12, 14, 16, 12, 14, 12, 16, 9, 19, 14, 12, 9, 12, 19, 14, 16, 19, 12, 19

4.

A certain data set is organized using the following line plot.

What is the range of the data set?

 a. d. b. e. c.

5.

Find the data set that was used to produce the following line plot.

 a. 13, 13, 13, 13, 13, 8, 8, 8, 8, 16, 16, 16, 16, 17, 17, 17, 17, 17, 14, 14, 14, 14, 7, 7, 21, 21, 21 d. 13, 13, 13, 13, 8, 8, 8, 8, 8, 16, 16, 16, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 7, 7, 21, 21, 21 b. 13, 13, 13, 13, 13, 8, 8, 8, 8, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 7, 7, 21, 21, 21 e. 13, 13, 13, 13, 13, 8, 8, 8, 8, 16, 16, 16, 17, 17, 17, 17, 17, 17, 14, 14, 14, 7, 7, 7, 21, 21, 21 c. 13, 13, 13, 13, 13, 8, 8, 8, 8, 16, 16, 16, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 7, 7, 21, 21, 21

6.

Organize the following data using a stem-and-leaf plot.

13, 2, 35, 5, 16, 39, 42, 7, 33, 25, 3, 14, 47

 a. d. b. e. c.

7.

The following stem-and-leaf plot was used to organize a group of test scores.  How many students had a test score higher than 70?

 a. 14 d. 11 b. 5 e. 6 c. 15

8.

Find the median of the following set of measurements.

3, 2, 10, 13, 9, 23, 15, 3, 25

 a. 10 d. 3 b. 11.444 e. 9 c. 13

9.

Jasmine is in the checkout line of a grocery store.  Her basket contains 3 bags of chips at a price of \$3.24 per bag, 8 jars of peanut butter at \$2.53 per jar, 10 frozen pizzas at \$4.23 per pizza, and 4 candy bars at \$1.46 per bar.  Find the mean price of all the items in her basket.

 a. \$2.53 d. \$3.12 b. \$3.24 e. \$2.99 c. \$4.23

10.

A certain restaurant hosted a series of birthday parties throughout the month.  If the number of attendees at each party is listed below, find the median number of attendees for the month.

127                          79
88                            55
106                          118
51                            123

 a. 88 d. 89 b. 106 e. 93.38 c. 97

11.

Find the variance of the following data set.

6, 2, 11, 13, 7, 20, 17, 11

 a. 11 d. 5.51 b. 10.875 e. 31.433 c. 30.359

12.

Find the standard deviation of the following data set.

6, 1, 11, 12, 9, 19, 16, 11

 a. 5.219 d. 27.234 b. 4.102 e. 10.625 c. 11

13.

A certain restaurant hosted a series of birthday parties throughout the month.  If the number of attendees at each party is listed below, find the standard deviation of the data set.

121                          73
81                            53
101                          117
57                            124

 a. 723.609 d. 23.352 b. 90.875 e. 26.9 c. 21.59

14.

Find the variance and standard deviation of the following data set.

4, 1, 11, 16

 a. variance: 33.849standard deviation: 5.874 d. variance: 34.500standard deviation: 5.874 b. variance: 34.500standard deviation: 5.818 e. variance: 36.092standard deviation: 6.008 c. variance: 33.849standard deviation: 5.818

15.

Find the upper quartile of the following set of data.

21, 28, 19, 27, 44, 35, 11, 32, 50, 42, 17, 39

 a. 39 d. 20 b. 40.5 e. 50 c. 42

16.

Find the sum of square differences between the data below and the corresponding least-squares regression line.

(3, 5), (7, 3), (10, 10), (11, 19)

 a. 65.861 d. 67.082 b. 64.06 e. 65.187 c. 15.51

17.

Find the sum of square differences between the data below and the corresponding least-squares regression line.

(–4, 6), (–1, 3), (7, 6), (9, –3), (12, –9)

 a. 74.748 d. 14.268 b. 72.535 e. 76.084 c. 74.077

18.

Find the least squares regression parabola for the points.

(, –3), (, 0), (0, –2), (1, 0)

 a. d. b. e. c.

19.

A certain town conducted a survey to find out the average grocery bill of families of various sizes.  Some of the compiled data is shown below.

 Family Size, x 1 2 3 4 Weekly Grocery Bill (in \$’s), y 90 149 180 231

Estimate the weekly grocery bill for a family of size 7 using the least squares regression line for the data.

 a. \$369.36 d. \$365.53 b. \$368.05 e. \$366.80 c. \$370.12

20.

A certain town conducted a survey to find out the average square footage of houses for families of various sizes.  Some of the compiled data is shown below.

 Family Size, x 1 2 3 4 Square Feet, y 945 1023 1249 1439

Estimate the average square footage in a house for a family of size 7 using the least squares regression line for the data.

 a. 1929.6 feet d. 1936.6 feet b. 1927.6 feet e. 1924.6 feet c. 1932.6 feet