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If f(x)={{:(2x, 0 le x le a), (0, "other...

If `f(x)={{:(2x, 0 le x le a), (0, "otherwise"):}` is a probability density function of a random variable, then the value of a is

A

1

B

2

C

3

D

4

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The correct Answer is:
a
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PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-EXERCISE 11.6
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  11. If P{X=0}=1-P{X=1}. If E{X}=3Var(X), then P{X=0} is

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  18. Let X have a Bernoulli distribution with mean 0.4, then the variance ...

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