Consider the following frequency distribution table: x13579Frequency (f)42428α8 If the mean of this data is 5, and m and σ2 are respectively the mean deviation about the mean and the variance of the data, then the value of 3αm + σ2 is:

In a moderately skewed distribution, if Mean = 12 and Median = 8, then using Empirical relation (Mode = 3 Median - 2 Mean), what is the value of Mode?

If 4y - 5x = 15 is the regression line of y on x and the coefficient of correlation between x and y is 0.75, what is the value of the regression coefficient of x on y (bxy)?