An exponential probability distribution has lambda equal to 20 customers per hour. Find the following probabilities.
A) What is the probability that the next customer will arrive within the next minute?
B) What is the probability that the next customer will arrive within the next 45 seconds?
C) What is the probability that the next customer will arrive within the next 7 minutes?
D) What is the probability that the next customer will arrive within the next 16 minutes?