A roulette wheel has 38 spaces numbered 1 through 36, 0, and 00. Find the probab

Question

A roulette wheel has 38 spaces numbered 1 through 36, 0, and 00. Find the probability of getting these results. An odd number A number greater than 25 A number less than 15 not counting 0 and 00 Thirty-nine of 50 states are currently under court order to alleviate overcrowding and poor conditions in one or more of their prisons. If a state is selected at random, find the probability that it is currently under such a court order. Source: Harper's Index. A CBS News/New York Times poll found that of 764 adults surveyed nationwide, 34percentage felt that we are spending too much on space exploration, 19percentage felt that we are spending too little, 35percentage felt that we are spending the right amount, and the rest said "don't know" or had no answer. If one of the respondents is selected at random, what is the probability that the person felt that we are spending the right amount or too little? Source: www.poIlingreport.com. In a survey, 16 percent of American children said they use flattery to get their parents to buy them things. If a child is selected at random, find the probability that the child said he or she does not use parental flattery. Source: Harper's Index.

Explanation / Answer

n(S) = 38

(a) Odd numbers are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35

n(A) = 18

P(A) = 18/38 = 9/19

(b) The numbers are 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36

n(B) = 11

P(B) = 11/38

(c) The numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

n(C) = 14

P(C) = 14/38 = 7/19

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