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Question
(a)Chau is playing a board game. He must roll dice to determine if he gets an extra turn. The probability of getting an extra turn is
5/18
. Find the odds in favor of getting an extra turn.
(b)Lucy has a box of candies and will randomly choose one piece. The odds against choosing a lemon-flavored piece are
2/5
. What is the probability of choosing a lemon-flavored piece?
a) Given that the probability of getting an extra turn is p = 5/18.
The odds in favor of getting an extra turn is given as p/(1-p).
p/(1-p)=(5/18) / (1-5/18) = 5/13
The answer is 5/13.
b) Let the probability of choosing a lemon-flavored piece to be p.
The odds against choosing a lemon-flavored piece is given as (1-p)/p. which is equal to 2/5 (Given).
(1-p)/p = 2/5
1/p - 1 = 2/5
1/p = 2/5 + 1
1/p = 7/5
p = 5/7
The answer is p = 5/7
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