SOLUTION: A spinner is divided into three equally sized regions as shown. The spinner is spun twice. For each probability you determine, express your answer as a fraction, decimal and percen
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Question 1194089: A spinner is divided into three equally sized regions as shown. The spinner is spun twice. For each probability you determine, express your answer as a fraction, decimal and percent.
b)Draw a tree diagram to represent the sample space for both spins.
c)What is the probability of spinning A followed by B ?
d)What is the probability of having the same letter on both spins? Answer by greenestamps(13198) (Show Source):
(c) The outcome must be A on the first spin and B on the second, each with probability 1/3.
ANSWER: (1/3)(1/3) = 1/9
(d) The outcome on the first spin can be any of the three regions; the probability of a good outcome is 3/3 = 1. The outcome of the second spin must be the same as the outcome on the first spin -- probability 1/3.
