Answer Key:
0.0039
Feedback:
New mean per hour is 2.5*60 = 150
In Excel,
=POISSON.DIST(125,150,FALSE)
Question 18 of 20
A bank gets an average of 8.5 customers per hour. Assume the variable follows a Poisson
distribution. Find the probability that there will be 4 or more customers at this bank in one hour. (That is, find P(X
≥
4)

1.0/ 1.0 Points
Part 6 of 6 - Probability
2.0/ 2.0 Points
Question 19 of 20
On a baseball team, there are infielders and outfielders. Some players are great hitters, and some
players are not great hitters. Let I = the event that a player in an infielder. Let O = the event that a player is an
outfielder. Let H = the event that a player is a great hitter. Let N = the event that a player is not a great hitter. Write
the symbols for the probability that a player is an outfielder or is a great hitter.

2/7/2020
APUS CLE : MATH302 B006 Win 20 : Tests & Quizzes
B

9/9
Feedback:
5*4*2
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Question 20 of 20
If a menu has a choice of 5 appetizers, 4 main courses, and 2 desserts, then the sample space for all
possible dinners has how many outcomes?
A