Given that,n = 5Also, Mean+ Variance = 4.8⇒np + npq = 4.8⇒np(1+q) = 4.8⇒5p(1+q) = 4.8⇒5(1 - q)(1+q) = 4.8 [Since, p + q = 1]⇒5(1 - q2) = 4.8The required binomial distribution is given by,

Q. 45.0( 1 Vote )

Find the binomial

Class 12th RD Sharma - Volume 2 33. Binomial Distribution

Answer :

Given that,

n = 5

Also, Mean+ Variance = 4.8

⇒np + npq = 4.8

⇒np(1+q) = 4.8

⇒5p(1+q) = 4.8

⇒5(1 - q)(1+q) = 4.8 [Since, p + q = 1]

⇒5(1 - q²) = 4.8

The required binomial distribution is given by,

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