CUET Mathematics - Let X be a discrete random variable whose probability distribution is defined as follows; P(X=x)=casesk(x+1), & x=1,2,3,4\\ 2kx, & x=5,6,7\\ 0, & otherwisecases where k is constant, then P(X=5) is equal to | PYQs + Solutions

CUET Mathematics 2026 18th May Shift 1

Applied Mathematics

Easy

applied

$\frac{1}{10}$

$\frac{1}{50}$

$\frac{1}{5}$

$\frac{1}{20}$

✅ Correct Option: 3

Related questions:

14th May Shift 2

If X has a Poisson distribution such that $2P(X=1)=P(X=2)$ , then which of the following are correct?

A. The mean of X is 4

B. The mean of X is 2

C. $P(X=2)=\frac{8}{e^4}$

D. $P(X=3)=\frac{32}{e^4}$

Choose the correct answer from the options given below:

11 Aug Shift 1

The probability distribution of a discrete random variable X is given by :

X	30	10	-10
P(X)	1/5	3/10	1/2

then E(X) is equals to

30th May Shift 1

A box contains 8 red and 2 white balls. If three balls are drawn, one by one, at random without replacement, then the variance of the number of white balls drawn is:

CUET Mathematics 2026 18th May Shift 1 PYQs

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