In the American version of roulette, a ball is spun
around a wheel and has an equal chance of landing in any
one of 38 slots numbered 0, 00, 1,2 .... 36. Shown in the
figure is a standard betting layout for roulette, where the
color of the oval corresponds to the color of the slot on
the wheel. Find the probability that the ball lands
(a) in a black slot
(b) in a black slot twice in succession

Question

In the American version of roulette, a ball is spun
around a wheel and has an equal chance of landing in any
one of 38 slots numbered 0, 00, 1,2 .... 36. Shown in the
figure is a standard betting layout for roulette, where the
color of the oval corresponds to the color of the slot on
the wheel. Find the probability that the ball lands
(a) in a black slot
(b) in a black slot twice in succession

rock_mit182 · Answer

attachment

rock_mit182 · Answer

@campbell_st

campbell_st · Answer

well 1 black spot is P(B) = 16/38

2 blacks

P(B, B) = 16/38 x 16/38

hope it helps

rock_mit182 · Answer

I Tought It was harder, thank a lot