I know 50% of Chrome add-ons are spam add-ons containing a virus. A tool can detect 99% of spam but can mistake a non-spam detected as spam 5% I know an add-on is detected as spam but How do I find the probability that it is in fact a non-spam add-on P(B'lA) The following is given= P(B) = 0.5, P(B') = 0.5, P(AlB) = 0.99, P(AlB') = 0.05

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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I know 50% of Chrome add-ons are spam add-ons containing a virus. A tool can detect 99% of spam but can mistake a non-spam detected as spam 5%

I know an add-on is detected as spam but How do I find the probability that it is in fact a non-spam add-on P(B'lA)

The following is given= P(B) = 0.5, P(B') = 0.5, P(AlB) = 0.99, P(AlB') = 0.05

 

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Given; P(B) = 0.5, P(B') = 0.5, P(AlB) = 0.99, P(AlB') = 0.05

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