A six sided die with faces numbered one through six is rolled twice. What is the probability that the face with the number 2 on it will not be facing upward on either roll?
P(not to have2) = P(not to have 2 at the 1st roll) x P(not to have 2 at the 2nd roll)
P(not to have2) = 5/6 x 5/6=25/36
