RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 33. Binomial Distribution

Subject: Maths - Class 12th

Q. No. 17 of Exercise 33.2

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17

If X follows a binomial distribution with mean 4 and variance 2, find P(X ≥ 5).

Given that parameters for binomial distribution are n, p








Now, np = 4



n = 8



The required binomial distribution is given by,



Now, P(X≥5) = P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8)







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