- Mar 22, 2006

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- Pre-Dental

A roulette wheel consists of 38 slots. 36 of these are numbered 1 through 36 and colored red or black so that there are nine red even-numbered slots, nine black odd-numbered slots, etc. These slots occurs with equal probability. The two slots marked 0 or 00 are each three times as likely to occur as any one the other 36. What is the pprobablitliy that a red even number, a red 23, or a 00 will occur on one roll of the wheel?

A. 2/7

B. 5/18

C. 13/38

D. 13/42

E. 3/10

The correct answer is D. I worked it out like so and got C.

9/38 (chance of red even number) + 1/38 (chance of red 23) + 3/38 (chance of 00) = 13/38.

Probably some silly mistake. Help, please.

A. 2/7

B. 5/18

C. 13/38

D. 13/42

E. 3/10

The correct answer is D. I worked it out like so and got C.

9/38 (chance of red even number) + 1/38 (chance of red 23) + 3/38 (chance of 00) = 13/38.

Probably some silly mistake. Help, please.

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"It's written all over this place...the signs of all creation that He breathed.".

Jeremy Camp. Ah, greatness!!.

Jeremy Camp. Ah, greatness!!.