RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 33. Binomial Distribution

Subject: Maths - Class 12th

Q. No. 4 of Exercise 33.2

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

4

Find the binomial distribution when the sum of its mean and variance for 5 trials is 4.8.

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,



Chapter Exercises

More Exercise Questions