In a survey of 250 television viewers, 88 like to watch news, 98 like to watch sports, and 94 like to watch comedy. 33 people like to watch news and sports, 31 like to watch sports and comedy, and 35 like to watch news and comedy. 10 people like to watch all three. Suppose a person from this group is picked at random:

a. What is the probability that they watch news but not sports?

b. What is the probability that they watch news or sports but not comedy?

c. What is the probability that they watch neither sports nor news?