The option to buy extended warranties is commonplace with most electronics purchases. Does the type of purchase affect a consumer's willingness to pay extra for an extended warranty? Data for 420 consumers who purchased digital cameras and laptop computers from a leading electronics retailer are summarized in the table. 
a. What is the probability that a consumer purchases an extended warranty?
b. What is the probability that a consumer purchases a digital camera and an extended warranty?
c. What is the probability that a consumer purchases an extended warranty given that he/she has purchased a digital camera?
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