An insurance company has collected data on the gender and marital status of 300 customers, shown in

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An insurance company has collected data on the gender and marital status of 300 customers, shown in Exhibit 4.32 below.
Married 125 Divorced 30 Single 25 Male Female 20 50 50

Suppose a customer is selected at random from this sample.
a. What is the probability that the customer is female or married?
b. What is the probability that the customer is married if the customer is male?
c. Are gender and marital status independent? Prove your answer.

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