The probability distribution of a random variable X is given belo… - Vidyadip

MCQ

The probability distribution of a random variable X is given below. If its mean is 4.2, then the values of a and bar respectively

X = x	1	2	3	4	5	6
P(X = x)	a	a	a	b	b	0.3

A
0.2, 0.1
✓
0.1, 0.2
C
0.1, 0.4
D
0.3, 0.2

✓

Answer

Correct option: B.

0.1, 0.2

B

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