In the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1, 2, . . . , 36. The odd-numbered slots are red, and the even-numbered slots are black. The numbers 0 and 00 are green. To play the game, a metal ball is spun around the wheel and
is allowed to fall into one of the numbered slots.
(a) What is the probability that the metal ball lands on green or red?
(b) What is the probability that the metal ball does not land on green?