An online retailer receives an average of five orders per 500 hits on its website. If it gets 100 hits on its website,find the probability of receiving at least two orders. Use the Poisson distribution.
A) 0.2642
B) 0.1839
C) 0.9048
D) 0.9596

Question

Quizplus · Accepted Answer

The average rate of orders per 100 hits is 1 (since 5 orders per 500 hits translates to 1 order per 100 hits). Using the Poisson distribution with λ = 1, the probability of receiving at least two orders is 1 minus the probability of receiving 0 or 1 order. This calculation gives approximately 0.2642.

An Online Retailer Receives an Average of Five Orders Per