Question 15 of 20
0.0/ 1.0 Points
If random variable X has a Poisson distribution with mean = 10, find the probability that X is
more than 2. (That is, find P(X

Question 16 of 20
0.0/ 1.0 Points
The mean number of visitors at a national park in one weekend is 55. Assume the variable
follows a Poisson distribution. Find the probability that there will be at most 49 visitors at this

Question 17 of 20

0.0/ 1.0 Points
Suppose a random variable, x, follows a Poisson distribution. Let µ=2.5 every minute, find the

Question 18 of 20
0.0/ 1.0 Points
Suppose a random variable, x, follows a Poisson distribution. Let μ = 3 every day, find the P(X ≤

Part 6 of 6 - Probability
2.0/ 2.0 Points
Question 19 of 20
1.0/ 1.0 Points
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.
28
B.

11
C.
40
D.
48
Answer Key:C
Feedback:
5*4*2
Question 20 of 20
1.0/ 1.0 Points
The table below shows the preferences for elective courses of students who are undecided about
their majors.
Philosophy
Digital Art
Film Studies
Male
9
16
22
Female
6
18
14
What is the probability of randomly selecting a student who is female or prefers Digital Art?

B.
46.2%
C.
21.2%
D.
84.7%
Answer Key:A