Who is the new head of Europeon Parliament elected in

If xi | fi , i = 1,2,...n is a frequency distribution with standard deviation 15 and mean 30, the coefficient of variation will be equal to:

The grouped data for the observation are as follows.

  The standard error of the given data 15, 5, 12, 10, 20, 4 is

If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:

If moment generating function of continuous random variable X is (λ /λ−t) ;t < λ, then E(X³) equals to:

For frequency distribution presentation , which option is wrong.

If the population kurtosis of the observations 16,12,6,2,4,10 is 1.7414, then population kurtosis of the 8,6,3,1,2,5 is