1
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+2
-0
Two dice are thrown simultaneously. If X denotes the number of sixes, then the expectation of X is
2
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+2
-0
The probability distribution of a random variable X is
| $$\mathrm{X=x}$$ | 1 | 2 | 3 | ......... | $$\mathrm{n}$$ |
|---|---|---|---|---|---|
| $$\mathrm{P(X=x)}$$ | $$\mathrm{\frac{1}{n}}$$ | $$\mathrm{\frac{1}{n}}$$ | $$\mathrm{\frac{1}{n}}$$ | ......... | $$\mathrm{\frac{1}{n}}$$ |
then Var(X) =
3
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+2
-0
A fair coin is tossed for a fixed number of times. If probability of getting 7 heads is equal to probability of getting 9 heads, then probability of getting 2 heads is
4
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+2
-0
If the probability distribution function of a random variable X is given as
| $$\mathrm{X=x_i}$$ | $$-2$$ | $$-1$$ | 0 | 1 | 2 |
|---|---|---|---|---|---|
| $$\mathrm{P(X=x_i)}$$ | 0.2 | 0.3 | 0.15 | 0.25 | 0.1 |
Then F(0) is equal to
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