If X is a normal variate representing the income in Rs. per day with mean=50 and S.D=10. If the number of workers in a factory is 1200, then the number of workers having income more than Rs. 62.00 =0.3849 where Z is a standard normal variate)

If X is a random variable, E(e ^tX ) is known as

Sum of absolute deviations about median is

The mean of the distribution, in which the value of x are 1,2,...,n, the frequency of each being unity is

Which measure of location will be suitable to compare heights of students in two classes?