Probability of finding money on the next time check

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Question: Suppose you routinely check coin-return slots in vending machines to see if they have any money in them. You have found that about 10% of the time you find money.

a. What is the probability that you do not find money the next time you check?

b. What is the probability that the next time you will find money is on the third try?

c. What is the probability that you will have found money by the third try?

Reference no: EM131772386

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