Posted by **tim** on Sunday, February 26, 2012 at 9:19pm.

. Each week during the first half of the semester, a sample of 50 students was polled to

determine how many of them had their homework done before class. The following arc

the results of the weekly polls:

Week # # of students with homework done

1 1

2 8

3 12

4 14

5 22

6 30

7 25

8 8

a. Calculate the median.

b. Calculate the standard deviation.

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