Automobiles frequently arrive at the Bronte exit of the Queen Elizabeth Way at the rate of four per minute. The distribution of arrivals approximates a Poisson distribution.

a.What is the probability that no automobiles arrive in a particular minute?(Round the final answer to 4 decimal places.)

Probability

b.What is the probability that at least three automobile arrives during a particular minute?(Round the final answer to 4 decimal places.)

Probability