I need to know the steps to solve the below problem.

An airline tracks data on its flight arrivals. Over the past six months, 25 flights on one route arrived early, 150 arrived on time, 45 were late, and 30 were canceled.

a. What is the probability that a flight is early? On-time? Late? Canceled?

b. Are these outcomes mutually exclusive?

c. What is the probability that a flight is either early or on time?