1
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+2
-0
The cumulative distribution function of a discrete random variable X is given by
| $\mathrm{X}=x$ | $-1$ | $0$ | $1$ | $2$ |
|---|---|---|---|---|
| $\mathrm{F(X=x)}$ | 0.3 | 0.7 | 0.8 | 1 |
Then $\mathrm{E(X^2)=}$
2
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+2
-0
If the sum of the deviations of 50 observations from 30 is 50 , then the mean of these observations is
3
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+2
-0
Variance of first n natural numbers is ________.
4
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+2
-0
The mean of the numbers $a, b, 8,5,10$ is 6 and the variance is $6.8$ . Then which of the following gives possible values of $a$ and $b$ ?
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