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Given the following data. Find the mean , Variance and the standard deviation of the sample....

  1. Given the following data. Find the mean , Variance and the standard deviation of the sample.

Classes           Freq.           X            XF         x – X          (x – X )2               ( x –X )2F

2 – 4                2

5 _ 7                  5

8 – 10               3

Show your work please, Thank You!

math   Statistics-And-Probability   
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