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John runs a computer software store. Yesterday he counted 130 people who walked by the store,...

John runs a computer software store. Yesterday he counted 130 people who walked by the store, 67 of whom came into the store. Of the 67, only 22 bought something in the store.

(a) Estimate the probability that a person who walks by the store will enter the store. (Round your answer to two decimal places.)

(b) Estimate the probability that a person who walks into the store will buy something. (Round your answer to two decimal places.)

(c) Estimate the probability that a person who walks by the store will come in and buy something. (Round your answer to two decimal places.)

(d) Estimate the probability that a person who comes into the store will buy nothing. (Round your answer to two decimal places.)

Math   Statistics-And-Probability   
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