X is a discrete random variable with cumulative distribution function F(x) as shown in the table...

Question

Question

X is a discrete random variable with cumulative distribution function F(x) as shown in the table below. What is P1[.X<2]? fr

Answer 1

Answer #1

Probability mass function from given cumulative distribution function is given by,

x	0	1	2	3
P(x)	1/8	(1/2)-(1/8)=3/8	(7/8)-(1/2)=3/8	1-(7/8)=1/8

P[X < 2] = 006 + 2010 + 100

$=\frac{7}{8}$

Option A) is correct.

Answer 2

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