Math Project (Bayes Rule) Part 2
By sshrestha, Updated
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Only a small amount of people (4 in 400) actually have breast cancer
In addition, our tests are pretty inaccurate at this point in time
In fact, 1 out of every 4 tests is wrong
So of the 396 who don't actually have breast cancer, 1 in 4 (99 people) will get an inaccurate test saying they do
And even though there's a high (3 in 4) chance the one person who does have breast can will get a true positive, ...
... It's more likely you are part of the 99 people who got a false positive than one of the 4 people who was correctly diagnosed
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