Suppose that 15 percent of the messages arriving at a mailxbox are spam and that 20 percent
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Question:
Suppose that 15 percent of the messages arriving at a mailxbox are spam and that 20 percent of spam messages arriving there contain the word “winner”. Suppose also that the probability that the word “winner” appears in a non-spam message is 5 percent.
(a) What percentage of the received emails contain the word “winner”?
(b) Suppose that a message is tagged as spam based on containing the word “winner”. Find the probability that the message is indeed a spam.
Related Book For
Business research methods
ISBN: 978-1439080672
8th Edition
Authors: William G Zikmund , Barry J. Babin, Jon C. Carr, Mitch Griff
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