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Several people were asked to report the number of hours of sleep they average per night. The results are shown in thehistogram below. How many of those people average greater than 4.5 and less than 6.5 hours of sleep per night?

Several people were asked to report the number of hours of sleep they average per night The results are shown in thehistogram below How many of those people ave class=


Answer :

EXPLANATION

We can get the solution by calculating the frequency on the Histogram as shown as follows:

Hours Frequency

4.5-5.5 7

5.5-6.5 4

------------

Total Frequency ----------------------> 11

The number of people that average greater than 4.5 and less than 6.5 hours of sleep per night are 11 persons.

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