A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Question
To gauge the effectiveness of the OHaganBooks
.com site, you recently commissioned a survey of online shoppers. According to the results, 2% of online shoppers visited
OHaganBooks.com during a 1-week period, while 5% of
them visited at least one of OHaganBooks.com’s two main
competitors: JungleBooks.com and FarmerBooks.com. Use
this information to answer Exercises 43–50
What the survey found is that 25% of online shoppers who
visited a competitor also visited OHaganBooks.com. Given
this information, what percentage of online shoppers visited OHaganBooks.com and neither of its competitors?
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