1 votes 1 votes Let $X_1$, $X_2$, $X_3$, and $X_4$ be independent normal random variables with zero mean and unit variance. The probability that $X_4$ is the smallest among the four is _______ . Probability gate2018-ec engineering-mathematics probability normal + – Lakshman Bhaiya asked Feb 21, 2018 edited May 28, 2019 by Lakshman Bhaiya Lakshman Bhaiya 2.6k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes The answer must be 0.25. As X1, X2, X3, and X4 are independent normal random variables with zero mean and unit variance. Then P(X1 is the smallest ) = P(X2 is the smallest ) = P(X3 is the smallest) = P(X4 is the smallest) = 1/4 = 0.25 pankaj_vir answered Mar 5, 2018 pankaj_vir comment Share Follow See all 0 reply Please log in or register to add a comment.