A box contains 1 grey ball, 2 white balls and 3 black balls. Without looking, John reaches in and chooses one ball at random. What is the probability that the ball is not grey?
(A) 1
(B) $\frac{2}{6}$
(C) $\frac{3}{6}$
(D) $\frac{4}{6}$
(E) $\frac{5}{6}$
There are 6 balls in the box. 5 of the balls in the box are not grey. Therefore, the probability of selecting a ball that is not grey is $\frac{5}{6}$.

Answer: (E)