二、統計部分:
1. If X1, X2, X3 constitute from Bernoulli distribution with parameter θ. Show that Y=(X1+2X2+3X3)/6 is not a sufficient estimator of Bernoulli parameter θ. (15%)
二、統計部分:
1. If X1, X2, X3 constitute from Bernoulli distribution with parameter θ. Show that Y=(X1+2X2+3X3)/6 is not a sufficient estimator of Bernoulli parameter θ. (15%)