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If moment generating function of continuous random variable X is (λ /λ−t) ;t < λ, then E(X3) equals to:
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:
Identify, from the following, the moment used as a measure of skewness?
The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
To estimate the average work experience of MBA students at a management institute, five students are selected at random from each type of background, s...
If mean and mode of the distribution is 32 and 21, then the distribution:
Following two statements are related to regression coefficient
(I) Independent of the change of origin
(II) Independent of the change of scale
The six decile (D6 ) of 5, 3, 2, 6, 8, 4 is:
If first, second, and third moment about origin are 1, 6, and 15 respectively, then Karl Pearson beta coefficient of skewness β is
The Mean deviation about Median for the given data.
52, 56, 66, 70, 75, 80, 82 is:
