Which of the following is NOT an approach for assigning the probability of the event?

If mean and mode of the distribution is 32 and 21, then the distribution:

For making frequency distribution, the number of classes used depends upon:

Which of the following is the most relevant for deriving a point estimate?

If the sum of lower and upper qualities is 6 and quartile deviation is 1.5, then the value of coefficient of quartile deviation is

For a distribution with mean, median, mode and standard deviation 25, 24, 26 and 5 respectively, Karl Pearson's coefficient of skewness equals to:

The first four moments of a distribution about the origin are -1.5,17,-30 and 108. The third moment about the mean is:

If Z1, Z2,…Zn are n independent standard normal variates, then Σⁿi=1 Z²i will follow:

The coefficient of correlation is the _________ of coefficients of regression.