In a survey at a local university, 45% of students say that they get less than the recommended eight hours of sleep per night.

Question

zubka84 [21]

2 years ago

5

In a survey at a local university, 45% of students say that they get less than the recommended eight hours of sleep per night.

In a group of 2800 students, how many would you expect get eight or more hours of sleep per night?

Mathematics

1 answer:

lesya [120] · Answer 1 · 2023-01-06T04:02:37+03:00

lesya [120]2 years ago

5 0

37% get less than 8 hours of sleep, 100%-37%=63%
63% get 8 hours or more per night:
(0.63)(2200)=1386

ANSWER: You would expect 1386 to get 8 or more hours of sleep per night.

In a survey at a local​ university, 45% of students say that they get less than the recommended eight hours of sleep per night.

In a survey at a local university, 45% of students say that they get less than the recommended eight hours of sleep per night.