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The Excess Kurtosis of the Geometric distribution with parameter p is:
The probability density function of a random variable X is f(x) = ( π /10) sin ( π x /5) ; 0 ≤ x ≤ 5. The first quartile of X is:
If each observation in a data set for number of employees in different divisions is doubled then the coefficient of quartile deviation:
If the population skewness of the observations 8,6,3, 1,2,5 is 0.233, then the population skewness of 16,12,6,2,4,10 is:
The first four moments of a distribution about the origin are -1.5,17,-30 and 108. The third moment about the mean is:
For frequency distribution presentation , which option is wrong.
Which of the following statements is INCORRECT?
Which of the following is an example of using a sample to make inference about a population?
The grouped data for the observation are as follows.
Class : 2-4 4-6 6-8...
