The relative frequency histogram shows the number of hours of sleep (Sleep Hours) reported as experienced last

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The relative frequency histogram shows the number of hours of sleep (Sleep Hours) reported as experienced “last night” for 24 men in college.

0.35 0.30 0.25 0.20 0.15 0.10 0.05 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 Sleep Hours Relative Frequency


a. About how many men had 6 or fewer hours of sleep?     

b. The graph is bimodal. What are the two modes?

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Essential Statistics

ISBN: 9780134134406

2nd Edition

Authors: Robert Gould, Colleen N. Ryan, Rebecca Wong

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