MAT 142 Problem set

Unit: Statistics

Topic: Organizing and Visualizing Data

Directions: Solve the following problems. Please show your work, and explain your reasoning.

Consider the set of test scores shown below

88 82 95 71 91 95 86 83 76 48

83 96 92 86 94 90 94 61 71 72

100 92 83 50 84 89 87 66 99 99

96 84 73 72 70 59 92 93 95 46

83 93 49 49 80 100 71 94 96 91

62 85 94 90 98 74 93 100 88 75

92 98 50 99 100 87 89 92 96

100 87 99 98 90 89 97 84 71

1. Organize the test data into a frequency table. Use classes of width 10, starting with 40.

Include columns for both the frequency and the relative frequency

1. Use the frequency distribution in part (1) to create a frequency histogram of the data.

Remember to give your chart a title and to label your axes.

1. Make and ordered stem and leaf display of the data in part (1)