Which of the following is NOT a component of the

If A and B are manually exclusive events such that P(A)P(B) > 0 , then which option is correct?

These seventh decile (D7) of data set 4, 3, 10, 9, 1 is

For a distribution with mean, median, mode and standard deviation 25, 24, 26 and 5 respectively, Karl Pearson's coefficient of skewness equals to:

For the variables X, Y and Z, rXY = 0.80, rXZ = 0.64, rY Z = 0.79 , then square of multiple correlation coefficient R² X.Y Z 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 the two variables X and Y, the following observations are tabulated

Second differencing in time series can help to eliminate which trend?

(I) Quadratic trend

(II) Linear trend