12. Golfers arrive at thestarter's booth of a public golf course at a rate of 25 per hour during theMonday-to-Friday midweek period. Determine the following probabilities assuming that a golfer has just arrived.

a. What is the probability that the next golfer will arrive within 6 minutes (0.1 hour)?

b. What is the probability that the next golfer will arrive within 18 minutes (0.3 hour)?

a. The probability that the next golfer will arrive within 6 minutes is ___________(Round to four decimal places asneeded.)

b. The probability that the next golfer will arrive within 18 minutes is ___________(Round to four decimal places asneeded.)