1. Find the area under the standard normal curve of each of the specified intervals. a) to the left of z=0.42, b) to the right of z=-1.82, c) Between z= -2.48 and z=1.94 d)to the left of z = -2.62 or to the right of z=1.93

2. In the following Poisson probability distribution the numbers of cars that arrive at a bank's drive through window between 3PM and 6PM on a Friday average 0.37 cars per minute. Compute the probability that the number of cars that arrive at the bank between 4:20PM and 4:30PM is a) Fewer than four cars; b) at leat three cars