The correct answer is A
The mean and median of the distribution is 12 and 15. Then the mode equals to:
For a normal distribution, which of the following is true?
If first, second, and third moment about origin are 1, 6, and 15 respectively, then Karl Pearson beta coefficient of skewness β is
For the data set
X: 1 2 3 4 ...
60% of the employees of a company are college graduates. Of these, 10% are in sales. Of the employees who did not graduate from college, 80% are in sal...
Which option is incorrect?
The variation among the observations of each specific class is known as:
Which of the following satisfies the time and factor reversal test?
For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is:
For a distribution, the mean is 10, variance is 16, Y1 is +1 and β2 is 4. The distribution is:
