According to a study published by a university, approximately two thirds of the 20 million people...

According to a study published by a university, approximately two thirds of the 20 million people who consume Valium in the US are women. Suppose a doctor who specializes in anxiety problems and muscle spasms always prescribes Valium for his patients. Suppose further that the chance that the doctor will prescribe a female patient is 2/3.

a) Find the probability that the fifth prescription for Valium given by a doctor is the first Valium prescription for a woman.

b) What is the probability that the doctor will see five patients until three women receive the Valium prescription?

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orchestra answered 1 year ago

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