Find the value of F(1)

Category: QuestionsFind the value of F(1)
Editor">Editor Staff asked 11 months ago

Find the value of F(1)
 
(a) 1/5
 
(b) 8/5
 
(c) 2/5
 
(d) 5/8
 
I got this question at a job interview.
 
This interesting question is from Random Variables and its Probability Distributions in section Probability of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

The correct choice is (d) 5/8
 
Best explanation: F(1)=P(X ≤ 1)
 
P(X ≤ 1) = P(X=1) + P(X=0)
 
=  1/2  + 1/8
 
= 5/8