Following their Super Bowl advertisement campaign, Larsson & Mitchell Advertising Inc. has noticed that 1 in 30 potential customers of Papa John's Pizza has viewed a specific pizza advertisement on social media, 1 in 4 has viewed the same advertisement on television, and 1 in 75 has viewed the same advertisement on both social media and television. The agency has also noticed that 1 in 5 potential customers actually purchases a pizza after seeing the ad, while 1 in 7 purchases a pizza without seeing the ad at all. Required:
a. What is the probability that a potential customer does not view the advertisement at all?
b. What is the probability that a potential customer will purchase a pizza from Papa John’s?
c. Given that pizza is sold at Papa John’s, What is the probability that the customer saw the advertisement on television or social media but not both?