RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 33. Binomial Distribution

Subject: Maths - Class 12th

Q. No. 23 of Exercise 33.2

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23

A die is thrown three times. Let X be the number of two’s seen. Find the expectation of X.

Let p = probability of getting a 2 when a die is thrown.



X follows a binomial distribution with,




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