Question

In roulette, a wheel with 38 numbers is spun. Of these, 18 are red, 18 are black, and 2 are green. The probability that when the wheel is spun it lands on any particular number is 1/38.

a) What is the probability that the wheel lands on a red number?
b) What is the probability that the wheel lands on a black number twice in a row?
c) What is the probability that the wheel lands on 0 or 00?
d) What is the probability that in five spins the wheel never lands on either 0 or 00?
e) What is the probability that the wheel lands on one of the first six integers on one spin, but does not land on any of them on the next spin?

I need to find how how to find the answers?

Answer 1

a) #red/total = ?

b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

c) Either-or probabilities are found by adding the individual probabilities.

d) (1-c)^5

e) 6/38 * (1-6/38) = ?

Answer 2

On a roulette wheel there are 38 sectors. Of these sectors, 18 are red, 18 are black , and 2 are green. When the wheel is spun, find the probability that the ball will land on