Find the value of P(X=3) if X is the discrete random variable taking values x1, x2, x3 where P(X=0)=0, P(X=1) = 1/4 and P(X=2) = 1/4(a) 1(b) 1/2(c) 1/3(d) 1/4I have been asked this question by my college director while I was bunking the class.The question is from Random Variables and its Probability Distributions topic in portion Probability of Mathematics – Class 12

Find the value of P(X=3) if X is the discrete random variable taking v

1.	Find the value of P(X=3) if X is the discrete random variable taking values x1, x2, x3 where P(X=0)=0, P(X=1) = 1/4 and P(X=2) = 1/4(a) 1(b) 1/2(c) 1/3(d) 1/4I have been asked this question by my college director while I was bunking the class.The question is from Random Variables and its Probability Distributions topic in portion Probability of Mathematics – Class 12
Answer» Right choice is (b) 1/2 To explain I would SAY: We know that ∑P(XI) = 1 P(X) = P(X=0) + P(X=1) + P(X=2) + P(X=3) 1 = 1/4 + 1/4 + P(X=3) P(X=3) = \(\frac {1}{2}\)

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