Posted by **Tom** on Wednesday, January 26, 2011 at 10:14pm.

Lee took a survey for the school newspaper and received the following data about the number of hours classmates studied per week: (1,2,4,5,6,8,9,10,10). Express as a common fraction the positive difference between tthe median and mean of this set of data.

- Algebra -
**Ms. Sue**, Wednesday, January 26, 2011 at 10:17pm
To find the mean, add the numbers and divide by 9.

To find the median, find the number in the middle.

- Algebra -
**helper**, Wednesday, January 26, 2011 at 10:25pm
Find the mean (average)

1 + 2 + 4 + 5 + 6 + 8 + 9 + 10 + 10 = sum

Average = sum/9

The median is the middle value, 6

mean - median = postive difference

Then express this difference as a fraction

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