Question

At the Fidelity Credit Union, a mean of 5.8 customers arrive hourly at the drive-through window. What is the probability that, in any hour, more than 5 customers will arrive

Answer 1

0.5217

Explanation:

P(more than 5 customer arrive):

P(X>=6)=1-P(X<=5)= 1-∑x=0x e-λ*λx/x!= 0.5217