The Laundry Shop sell washers and dryers. The owner of the store, Mr. Mcgee, thinks that a customer who purchases a washer is more likely to purchase a dryer than a customer that did not purchase a washer. he analyzes the sales from the last month and finds that a total of 240 customer made purchases. he counts 180 washers that were purchased and 96 dryers were purchased. Mr. McGee then count the number of sales that included both a washer and a dryer and finds 72 customers purchased both.Is there an association between the purchase of the washers and dryers?