CUET Mathematics - If the probability distribution of a discrete random variable X is given as | X | 0 | 1 | 2 | 3 | 4 | |---|---|---|---|---|---| | P(X) | 0.5 | 2k | 3k | 3k | 2k | Then the value of k is: | PYQs + Solutions

CUET Mathematics 2022 25 May Shift 1

Applied Mathematics

Easy

$\frac{1}{30}$

$\frac{1}{20}$

$\frac{1}{40}$

$\frac{1}{10}$

✅ Correct Option: 2

Related questions:

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If the random variable X follows the Poisson distribution such that P[X = k] = P[X = k+1], then the mean value of X is:

23 May Shift 3

A shopkeeper wants to check the average number of cars sold per call. Past record of sales is shown below:

Sale of cars (Units)	0	1	2	3
Probabilities	$\frac{1}{6}$	$\frac{1}{2}$	$\frac{3}{10}$	$\frac{1}{30}$

The expected number of cars sold is :

22 May Shift 3

If a random variable X follows binomial distribution with mean 5 and variance $\frac{5}{2}$ , then $P(X \leq 9)$ is :

CUET Mathematics 2022 25 May Shift 1 PYQs