Exhibit 2-1 The Numbers of Hours Worked (Per Week)by 400 Statistics Students

question 13

Multiple Choice

Exhibit 2-1
The numbers of hours worked (per week) by 400 statistics students are shown below.

-Refer to Exhibit 2-1.The class width for this distribution

• A)is 9
• B)is 10
• C)is 39,which is: the largest value minus the smallest value or 39 - 0 = 39
• D)varies from class to class

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