Mathematics, 26.02.2021 08:20 isabellemaine
Maria decides to keep placing a $1 bet on number 15 in consecutive spins of a roulette wheel until she wins. On any spin, there's a 1-in-38 chance that the ball will land on the number 15. Let R = the number of spins of the roulette wheel that it takes until she wins.
12.) Explain why R is a Geometric random variable (in context).
13.) How many spins would you expect it to take for Maria to win?
14.) What is the probability that it takes Maria exactly 3 spins to win for the first time?
15.) What is the probability that it takes Maria more than 3 spins to win for the first time?
Answers: 3
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Maria decides to keep placing a $1 bet on number 15 in consecutive spins of a roulette wheel until s...
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