John runs a computer software store. Yesterday he counted 139 people who walked by the store, 54 of whom came into the store. Of the 54, only 21 bought something in the store. (Round your answers to two decimal places.) (a) Estimate the probability that a person who walks by the store will enter the store. 50 (b) Estimate the probability that a person who walks into the store will buy something. 43 (c) Estimate the probability that a person who walks by the store will come in and buy something. 21 (d) Estimate the probability that a person who comes into the store will buy nothing. 57

John runs a computer software store. Yesterday he counted 139 people who walked by the store, 54 of whom came into the store. Of the 54, only 21 bought something in the store. (Round your answers to two decimal places.) (a) Estimate the probability that a person who walks by the store will enter the store. 50 (b) Estimate the probability that a person who walks into the store will buy something. 43 (c) Estimate the probability that a person who walks by the store will come in and buy something. 21 (d) Estimate the probability that a person who comes into the store will buy nothing. 57

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 50E: Medicine Out of a group of 9 patients treated with a new drug, 4 suffered a relapse. Find the...

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