A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. What is the class​ width?    # of social interactions Frequencies 15-24 5 25-34 17 35-44 18 45-54 13 55-64 20 65-74 8 75-84 3 85-94 7 95-104 1 105-114 1The class width is?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. What is the class​ width? 

 
# of social interactions Frequencies
15-24 5
25-34 17
35-44 18
45-54 13
55-64 20
65-74 8
75-84 3
85-94 7
95-104 1
105-114 1
The class width is?
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