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Safari File Edit View History Bookmarks Window Help mathal.com MATH 227: Statistics (Mon Wed. 7:00 to 9:05 p.m.) Homework: Homework #9 (Due Monday, October 23, at 7:00 p Score: 0 of 2 pts 1 of 7 (7 complete) | > 4.4.27 In a market research survey of 2232 motorists, 255 said that they made an obscene gesture in the previous month. Complete parts (a) and (b) below. a. If 1 of the surveyed motorists is randomly selected, what is the probability that this motorist did not make an obscene gesture in the previous month? The probability is (Round to four decimal places as needed.)Explanation / Answer
a. Number of motorists = 2232
Total obscene gesture motorists = 255
Pr(No obcene gesture motorists) = 1 - Pr(Obscene gesture motorists)
= 1 - 255/2232
= 0.8858
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