Find the value of F(4)

Category: QuestionsFind the value of F(4)
Editor">Editor Staff asked 11 months ago

Find the value of F(4)
 
(a) 9/11
 
(b) 1
 
(c) 5/11
 
(d) 1/2
 
I got this question in my homework.
 
I need to ask this question from Random Variables and its Probability Distributions in division Probability of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

1 Answers
Editor">Editor Staff answered 11 months ago

The correct choice is (b) 1
 
The best I can explain: F(4)=P(X ≤ 4)
 
P(X ≤ 4) = P(X=4) + P(X=3) + P (X=2) + P(X=1) + P(X=0)
 
= 1/11 + 4/11 + 2/11 + 3/11 + 1/11
 
= 1