Author Question: The local police department receives an average of two calls per hour. Use the Poisson distribution ... (Read 326 times)

kaid0807 · **on:** Jul 24, 2018

The local police department receives an average of two calls per hour. Use the Poisson distribution to determine the probability that in a randomly selected hour the number of calls is five.

A) 0.0361 B) 0.0018 C) 0.0282 D) 0.0014

Question 2

Find the z-score having area 0.86 to its right under the standard normal curve; that is, find z 0.86 .

A) -1.08 B) 1.08 C) 0.8051 D) 0.5557