1.
Let a random variable XX take values 0,1,2,30, 1, 2, 3 with P(X=0)=P(X=1)=pP(X = 0) = P(X = 1) = p and P(X=2)=P(X=3)P(X = 2) = P(X = 3). If E(X2)=2E(X)E(X^2) = 2E(X), then the value of 8p18p - 1 is: