A hotel chain conducted a survey of its guests. Sixtytwo surveys were completed. Based on the data from the survey, found in the file HotelSurvey, answer the following questions using the relative frequency assessment method.

a. Of two customers selected, what is the probability that both will be on a business trip?

b. What is the probability that a customer will be on a business trip or will experience a hotel problem during a stay at the hotel?

c. What is the probability that a customer on business has an in-state area code phone number?

d. Based on the data in the survey, can the hotel manager conclude that a customer’s rating regarding staff attentiveness is independent of whether he or she is traveling on business, pleasure, or both? Use the rules of probability to make this determination.