lose)- Need Help? Ras -4 points BBUnderStat11 4.1,023 My Notes Ask Your Teache J

Question

lose)- Need Help? Ras -4 points BBUnderStat11 4.1,023 My Notes Ask Your Teache John runs a computer software store. Yesterday he counted 121 people who walked by the store, 54 of whom came into the store. Of the 54, only 29 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.) (e) 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.) Need Help? Read Submit Answer Save Progress Practice Another Version Submit Assignment Save Assignment Progress Home My Assignments Extension Request

Explanation / Answer

P(enter store)= 54/121=0.4463

P(buy)=29/54=0.5370

a) P(enter store)= 54/121=0.45 (after rounding)

b) P(buy)=29/54=0.54 (after rounding)

c) P(enter store)* P(buy)=0.4463*0.5370=0.2396 or 0.24

d) P(comes and buys nothing)=1-P(buy)=1-(29/54)=1-0.5370=0.46

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