Question

let X have P.m.f.p (G) = K.X²
x=1,2,3,4 = 0 otherwise .
Find mean and Variance og x.
22​

Answer 1

Answer:

otherwise"):} Find mean and varince of X. ... P(X =1) +P(X =2 )+P(X=3)+P(X =4) = 1` <br> `therefore k +4k + ...