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 Interactive Checkpoint
 Variance:  A measure of how spread out a set of data is.

Answer the following questions about variance..

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Graded Response

 a) To find the variance, one must first subtract each member of the data set from the _____.  a)
 b) The final step in finding the variance is dividing a sum by the _____?  b)
 c) What does the variance tell you?  c)