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The correct answer is B
If the first, second and third moment about origin are 2, 8 and 14. respectively, then Karl Pearson gamma coefficient of skewness y1 is:
The coefficient of correlation is the _________ of coefficients of regression.
At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:
If moment generating function of continuous random variable X is (λ /λ−t) ;t < λ, then E(X3) equals to:
If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
For a random variable x, the central moments (µi) of all order exist. The square of (2j + 1)th moment (µ22j+1) is
For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to:
For the random variable X with probability density function f(x) = (x−3)2 /5; x = 3, 4, 5, the variance of X is:
