Posted by **Hannah** on Saturday, July 2, 2011 at 10:34pm.

I have a chart that has 4 columns across the top and 33 going down. The colunms on the top read: predicted number, selected number, (col 1 - col2)^2, and the mean of x. Their are 32 predicted numbers and 33 selected numbers. I need to fill in the column that says the mean of x but I am not sure how to do this.

Column 1 reads :

predicted # = 5

Selected # = -2

(col 1 - col 2)^2 = 49

How would I find the mean for this column?

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