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The probability that one has been to Antarctica given that one is a traveler is .05....

The probability that one has been to Antarctica given that one is a traveler is .05. The probability that one has not been to Antarctica given that one is not a traveler is .999. The probability that one is a traveler is .10. What is the probability of having been to Antarctica?

Continuing with the above: What is the probability of not being a traveler, given that you have been to Antarctica?

This is probability and statistics question

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