7, 176, ?, 378, 427, 452

If rp be partial correlation compound on sample rAB.c compound from sample of size n, the test statistic for significance testing is

If the difference between the rank of the 4 observations are 2.5, 0.5, -1.5, -1.5, then Spearman's rank correlation coefficient equals to:

The purchasing power of money is equal to:

With which characteristic movement of a time series would you associate increasing demand of smaller automobiles?

Which of the following statements is INCORRECT?

The value of k so that following is probability mass function

If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:

Approximately, the coefficient of variation for the given data where Pearson's second measure of skewness = 0.42, arithmetic mean- 86 and median 80, is:

The six decile (D6 ) of 5, 3, 2, 6, 8, 4 is:

For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is: