Florin, owner of Florin's Flower Mart, randomly sampled 124 customers in order to obtain data such as a customer's method of payment (Visa, MasterCard, American Express, cash, or some other method) and the day of the week that the customer made the purchase (except for when the store is closed on Sundays). The data are contained in the data file Florin. Construct the following:
a. A cross table of the variables method of payment and day of purchase
b. A pie chart of day of purchase