An engineer is participating in a research project on the title patterns of junk emails. The number of junk emails which arrive in an individual's account every hour follows a

Poisson distribution with a mean of 1.2. (a) What is the expected number of junk emails that an individual receives in an 8-hour day? (b) What is the probability that an individual receives more than two junk emails for the next three hours? (c) What is the probability that an individual receives no junk email for two hours?