Number of Hours Frequency 0 - 9 | 40 10 - 19 | 50 20 - 29 | 70 30 - 39 | 40 The class width for this distribution a. is 9 b. is 10 c. is 11 d. varies from class to class e. None of the above answers is correct.
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Step 1: Identify the difference between the upper and lower limits of each class interval. Show more…
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