Problem D.6 Question Help Calls arrive at Lynn Ann Fish's hotel switchboard at a rate of 1.5 per minute. The average time to handle each is 10 seconds. There is only one switchboard operator at the current time. The Poisson and negative exponential distribution: appear to be relevant in this situation, a) The probability that the operator is busy = 0.25 (round your response to two decimal places). b) The average time that a caller must wait before reaching the operator = 0.056 minutes (round your response to two decimal places). c) The average number of calls waiting to be answered = calls (round your response to two decimal places). Enter your answer in the answer box and then click Check Answer. All parts showing Clear All Check