Question

1. From experience, the manager of OSU  Book Mart knows that 40% of the people who are browsing in the store will make a purchase.

(a) What is the probability that, among ten people who are browsing in the store, exactly 3 will make a purchase.

(b) Explain why this is a binomial experiment.

2.

Given the Venn diagram  , find the following and type your answers into the box provided. Clearly mark each answer.

(a)  n(A∪Bc)n(A∪Bc)

(b)  n[A∩(B∪C)c]n[A∩(B∪C)c]

(c)  n(Ac)n(Ac)

(d)  n[(A∪B∪C)c]n[(A∪B∪C)c]

(e)  n(Ac∪Bc∪Cc)n(Ac∪Bc∪Cc)

Answer 1

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