Asked by Lori

In a department store there are 120 customers, 90 of whom will buy at least 1 item. If 5 customers are selected at random, one by one, find the probability that all will buy at least 1 item.
Answered by bobpursley
Pr=(90/120)(89/119)(88/118)(87/117)(86/116)

Answered by Lori
the answer the book is 243/1024
Answered by bobpursley
Great, we agree. Put (90/120)(89/119)(88/118)(87/117)(86/116) in your google search window.
Answered by Anonymous
90/120)(89/119)(88/118)(87/117)(86/116
Answered by Gina irfan
0.227
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