Question: Refer to Exercise 4.2.1. (a) What is probability that an individual selected at random used five addictive substances? (b) What is the probability that an

Refer to Exercise 4.2.1.

(a) What is probability that an individual selected at random used five addictive substances?

(b) What is the probability that an individual selected at random used fewer than three addictive substances?

(c) What is the probability that an individual selected at random used more than six addictive substances?

(d) What is the probability that an individual selected at random used between two and five addictive substances, inclusive?

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