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 2199 customers. The data is summarized in the table below.

What is the probability that a customer is female and lives in an apartment or is male and lives in a fraternity house? Express your answer as a fraction or a decimal number rounded to four decimal places.

Gender and Residence of Customers Males Females Apartment 84 276 Dorm 287 270 With Parent(s) 236 262 Sorority/Fraternity House 215 248 Other 78 243

Explanation / Answer

P(customer is female and lives in an apartment) = 276/2199 = 0.1255

P(customer is male and lives in a fraternity house) = 215/2199 = 0.0978

P(customer is female and lives in an apartment or is male and lives in a fraternity house)

= 0.1255 + 0.0978 = 0.2233 = 491/2199

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