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Consider the following data 4,7,8,9,10,1...

Consider the following data 4,7,8,9,10,12,13,17.
(i) Find the mean
(ii) Find the mean deviation about the mean.

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The correct Answer is:
`=3`
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  13. The standard deviation for the scores 1,2,3,4,5,6, and 77 is 2. Then ...

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  14. If the variance of 1,2,3,4,5 , …., 10 is (99)/(12), then the standard ...

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  15. If ""^(n)C(8)=""^(n)C(2), find ""^(n)C(2).

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