arning Macmilian Learning Jump to... d- MTH 214-Spring18-JOHNSON>Activities and

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arning Macmilian Learning Jump to... d- MTH 214-Spring18-JOHNSON>Activities and Due Dates> Resources Give Up? Feedback signment Score: 23.4% Question 5 of 15 Suppose that a polling company surveyed 600 people about how much time they spend sleeping each nigh survey were compiled and used to create this relative frequency histogram. 20. 10 10 Nightly hours of sleep Assume that all percentages shown in the histogram are whole numbers. Each of the bars in this histogram in MacBook Air P11 FV0 F8 F9 0 D00 FA F7 FS

Explanation / Answer

Ans:

1)percentage of people who sleep less than 6 hrs=0.01+0.08+0.19=0.28

hence,28% of the people sleep less than 6 hrs.

2)number of people who sleep between 7 and 9 hrs=(0.22+0.15)*600=0.37*600=222

3)Fewer than 10% of the respondents spends atleast 10 hrs sleeping each night.

(only 4% are there,who sleep atleast 10 hrs)

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