A standard roulette wheel has 38 numbered slots, which includes 18 black slots, 18 red slots, and 2 green slots. When the roulette wheel is spun and the ball is dropped, it can fall into any of the 38 spots randomly. Since there are 38 slots on the wheel, the chance that the ball will land on any one number is 1 in 38, or approximately 2.63 percent.
If you see the ball land on 7, then the probability that the ball will land on 7 on the next spin is ____________.
A.one fourth of 2.63 percent.
B.equal to 2.63 percent divided by 37.
C.2.63 percent.
D.half of 2.63 percent.
If you see someone gambling at the roulette table that has picked the number correctly five times in a row, would you advise her to increase the size of her bet since she is on a roll?
A.No, by increasing the size of the bet she would lower her odds of winning.
B.No, each time she picks a number correctly the chances she will do it again on the next spin decrease significantly.
C.No, each spin is independent, so previous success has no bearing on future success.
D.Yes, each correct pick increases the probability that she will pick correctly again on the next spin.
(1) Given that the chance that the ball will land on any one number is 1 in 38, or approximately 2.63 percent.
Each spin is random and independent of previous spin, so the probability of getting a seven on next spin, when the first spin gave us a seven is equal to 1 in 38 or 2.63%
option C is correct (C.2.63 percent.)
(2)
Given that the chance that the ball will land on any one number is 1 in 38, or approximately 2.63 percent.
Each spin is random and independent of previous spin, so the probability of getting the correct number on next spin, when we have five consecutive wins for a particular number, is equal to 1 in 38 or 2.63%
Therefore, next spin is not a high probability event, but it is equivalent to any other event or number on the spin. So, it is not advised to increase the bet amount
C.No, each spin is independent, so previous success has no bearing on future success.
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