If n = 5; P = 0.3, write down the probability function of Binomial dis

1.	If n = 5; P = 0.3, write down the probability function of Binomial distribution.
Answer» The p.m.f of Binomial distribution is: p(x) = n c_x p^x q^n-x ; x = 0,1,2, ……n. Here n = 5, p = 0.3 ; ∴ q = 1 – p = 0.7. ∴ p(x) = 5c_x 0.3^x0. 7^5-x ; x = 0, 1, 2, ….. 5.

If n = 5; P = 0.3, write down the probability function of Binomial distribution.

Answer»

The p.m.f of Binomial distribution is:

p(x) = n c_x p^x q^n-x ; x = 0,1,2, ……n.

Here n = 5, p = 0.3 ;

∴ q = 1 – p = 0.7.

∴ p(x) = 5c_x 0.3^x0. 7^5-x ;

x = 0, 1, 2, ….. 5.