A Single Ticket Taker Can Tear Tickets and Direct Movie

Multiple Choice

A single ticket taker can tear tickets and direct movie patrons to their seats at a rate of 90 per hour. Customers arrive every minute for assistance and always wait, regardless of how long the line gets. Arrivals are governed by the Poisson distribution and service is governed by the exponential distribution.
-Use the information in Scenario C.1.What is the probability that customers with tickets arrive and the ticket taker is not helping another patron?

A) 0.011
B) 0.11
C) 0.22
D) 0.33