A pizza delivery company classifies its customers by gender and location of resi

Question

A pizza delivery company classifies its customers by gender and location of residence. The research department has gathered data from a random sample of 1664 customers. The data is summarized in the table below.

What is the probability that a customer is female and lives in a dorm or is female and lives in 'Other'? Express your answer as a fraction or a decimal number rounded to four decimal places.

Gender and Residence of Customers Males Females Apartment 206 149 Dorm 295 276 With Parent(s) 55 68 Sorority/Fraternity House 132 204 Other 180 99

Explanation / Answer

total customers = 1664

P(a customer is female and lives in a dorm or is female and lives in 'Other') = P(a customer is female and lives in a dorm) + P(a customer is female and lives in 'Other')

                                                                                               = 276/1664 + 99/1664

                                                                                               = 0.2254 (ans)

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