# Question

According to the Department of Health and Human Services, 30% of 18- to 25-year-olds have some form of mental illness.

(a) What is the probability two randomly selected 18- to 25-year-olds have some form of mental illness?

(b) What is the probability six randomly selected 18- to 25-year-olds have some form of mental illness?

(c) What is the probability at least one of six randomly selected 18- to 25-year-olds has some form of mental illness?

(d) Would it be unusual that among four randomly selected 18-to 25-year-olds, none has some form of mental illness?

(a) What is the probability two randomly selected 18- to 25-year-olds have some form of mental illness?

(b) What is the probability six randomly selected 18- to 25-year-olds have some form of mental illness?

(c) What is the probability at least one of six randomly selected 18- to 25-year-olds has some form of mental illness?

(d) Would it be unusual that among four randomly selected 18-to 25-year-olds, none has some form of mental illness?

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