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OpenStudy (anonymous):

Out of 100 emails, 60 are spam and 48 of those contain the word buy. Of the remaining 40 emails that are not spam, only 4 emails contain the word buy. Given that an email is spam, what is the probability that it contains the word buy?

OpenStudy (anonymous):

48(emails with buy and spam)/52(total emails with buy) or maybe 48/100(total emails) my best guess.

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