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A certain type of pregnancy test has a 99% chance of being positive when the individual...

A certain type of pregnancy test has a 99% chance of being positive when the individual really is pregnant. This pregnancy test also only has a 52% chance of being negative when the individual really isn't pregnant. For a population where there is an 11% chance of being pregnant, answer the following questions:

A.) What is the probability of not being pregnant?

B.)What is the probability of testing positive when the individual is not pregnant?

C.) What is the probability of being pregnant and testing positive?

D.) What is the probability of testing positive?

E.) What is the probability of being pregnant given you test positive?(round 4 decimal places)

please help
Math   Statistics-And-Probability   
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