What makes the NCERT textbook different is the processes through which the pulse of this diverse country, and the needs of rural children, are addressed.
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:
