Given an arrival process with l = 5.0, what is the probability that an arrival occurs after t = 7 time units? Given an arrival process with l = 5.0, what is the probability that an arrival occurs...

Given an arrival process with l = 5.0, what is the probability that an arrival occurs after
t
= 7 time units? Given an arrival process with l = 5.0, what is the probability that an arrival occurs after
t
= 5 time units? Given an arrival process with l = 3.0, what is the probability that an arrival occurs in the first
t
= 2 time units?