Workers Employment data at a large company reveal that 72% of the workers are married, that 44% are college graduates, and that half of the college grads are married. What’s the probability that a...

Workers Employment data at a large company reveal that 72% of the workers are married, that 44% are college graduates, and that half of the college grads are married. What’s the probability that a randomly chosen worker

 a) is neither married nor a college graduate?

b) is married but not a college graduate?

c) is married or a college graduate?