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Elementary Statistics: A Step by Step Approach 8th ed. | 8th Edition | ISBN: 9780073386102 | Authors: Allan G Bluman Professor Emeritus
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Solved: NFL Payrolls The data show the NFL team payrolls

Chapter 2, Problem 17

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QUESTION:

NFL Payrolls The data show the NFL team payrolls (in millions of dollars) for a specific year. Construct a frequency distribution for the payroll using 7 classes. (The data in this exercise will be used in Exercise 17 in Section 32.) 99 105 106 102 102 93 109 106 77 91 103 118 97 100 107 103 94 109 100 98 84 92 98 110 94 104 98 123 102 99 100 107 Source: NFL.

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QUESTION:

NFL Payrolls The data show the NFL team payrolls (in millions of dollars) for a specific year. Construct a frequency distribution for the payroll using 7 classes. (The data in this exercise will be used in Exercise 17 in Section 32.) 99 105 106 102 102 93 109 106 77 91 103 118 97 100 107 103 94 109 100 98 84 92 98 110 94 104 98 123 102 99 100 107 Source: NFL.

ANSWER:

Problem 17

NFL Payrolls The data show the NFL team payrolls (in millions of dollars) for a specific year. Construct a frequency distribution for the payroll using 7 classes. (The data in this exercise will be used in Exercise 17 in Section 32.)

                                                               Step by Step Solution

Step 1 of 2

When the range of the data is large, the data must be grouped into classes that are more than one unit in width, in what is called a grouped frequency distribution.

It’s given that the groped distribution must contain 7 classes.

The range: R = highest value - lowest value = 123 -  77 = 46

Find the class width by dividing the range by the number of classes

Class width =

Round the class width to nearest whole number, ie; 7

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