Q14Short answer
If for a distribution ∑( x − 5) = 3, ∑ ( x − 5)2 = 43 and the total number of item is 18, find the mean and standard deviation.
If for a distribution ∑( x − 5) = 3, ∑ ( x − 5)2 = 43 and the total number of item is 18, find the mean and standard deviation.