CUET Mathematics - A discrete random variable X has the following probability distribution : | X: | 0 | 1 | 2 | 3 | 4 | 5 | |----|----|----|----|----|----|----| | P(X): | b | 3b | 5b | 3b | 4b | 6b | The value of b is : | PYQs + Solutions

CUET Mathematics 2023 15 June Shift 2

Applied Mathematics

Easy

$\frac{1}{25}$

$\frac{1}{5}$

$\frac{1}{22}$

✅ Correct Option: 3

Related questions:

11 Aug Shift 1

10 works hard drawn successively with replacement from a lot containing 10% defective bulb. The probability that there is at least one defective bulb is :

30 May Shift 3

Which of the following statements are correct ?

(A) $\text{var}(aX + b) = a^2 \text{var}(X)$

(B) $\text{var}(X) = E(X^2) - \{E(X)\}^2$

(D) $E(X) = \sum_{i=1}^{n} p_i x_i^2$

Choose the correct answer from the options given below :

22 May Shift 3

If the probability distribution of X is :

X	2	3	4	5	6
P(X)	1/15	2/15	3/15	4/15	5/15

Then variance is equal to :

CUET Mathematics 2023 15 June Shift 2 PYQs

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