In a survey at a local university, 42% of students say that they get less than the recommended eight hours of sleep per night. In a group of 4800 students, how many would you expect to get eight or more hours of sleep per night?

Question

Mathematics

Kody Maynard

28 May, 20:42

In a survey at a local university, 42% of students say that they get less than the recommended eight hours of sleep per night. In a group of 4800 students, how many would you expect to get eight or more hours of sleep per night?

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Answers (1)

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Brent Walls · Answer 1

2,784 people

Step-by-step explanation:

So we know 48% don't get eight hours of sleep ... so now we have to figure out of 100%, what percent gets eight or more hours.

100-42 = 58

So 58% get 8 hours or more ... this is equivalent to 0.58, which we can use to multiple against 4800.

4800*0.58 = 2784

Therefore, 2,784 people received eight or more hours of sleep per night