Posted by **Sarah** on Friday, November 4, 2011 at 4:58pm.

Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of students work between ______ and ______ hours per week. Select the TWO numbers below that should fit in these blanks.

0

5

15

22

27

32

39

45

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