WGU Applied-Probability-and-Statistics Actual Free Exam Questions & Community Discussion

Exam Code/Number: Applied-Probability-and-Statistics
Exam Name/Title: Applied Probability and Statistics (FZO1 C955)
Certification Provider: WGU
Corresponding Certification: Courses and Certificates

Exam Questions: 158
Updated On: Aug 21, 2026

Question #27

Dataset: 3, 6, 9. Median?

A. 6

B. 5

C. 4

D. 3

Discussion 0

Correct Answer: A Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #28

95% confidence interval for mean = (45, 55). Which statement is correct?

A. Mean is 50

B. Population mean always 55

C. Interval is fixed probability

D. Population mean is 95% likely within interval

Discussion 0

Correct Answer: D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #29

A golf course is attempting to correlate golfing handicap with math SAT scores among local high school golfers. Ignoring potential confounding variables such as socioeconomic status, the golf course creates the following scatterplot.

What is the estimated value of r, the correlation coefficient, between these variables?

A. 0.63

B. 0.10

C. #0.10

D. #0.63

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #30

A gardener records the length of a plant over a duration of 35 weeks. The scatterplot shows the data.

What is the relationship between length and time?

A. There is a strong positive relationship between time and the height of the plant.

B. There is a weak negative relationship between time and the height of the plant.

C. There is a weak positive relationship between time and the height of the plant.

D. There is a strong negative relationship between time and the height of the plant.

Discussion 0

Correct Answer: A Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #31

A class of 25 students includes 10 who play soccer, 8 who play basketball, and 7 who play neither sport.
What is the probability of randomly selecting a student who does not play soccer?

A. .30

B. .50

C. .60

D. .40

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #32

Probability of drawing king or queen from deck = ?

A. 1/13

B. 4/52

C. 1/26

D. 8/52

Discussion 0

Correct Answer: D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #33

Standard error decreases when:

A. SD increases

B. Sample size increases

C. Sample size decreases

D. Mean increases

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #34

Conditional probability formula:

A. P(A)/P(B)

B. P(B)/P(A)

C. P(A|B) = P(A and B)/P(B)

D. P(A)×P(B)

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #35

Null hypothesis for a new drug shows no effect. True statement?

A. Drug is effective

B. Cannot test

C. Assume no effect until evidence suggests otherwise

D. Drug is ineffective for sure

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #36

One-sample t-test compares:

A. Variances

B. Sample mean vs known population mean

C. Proportions

D. Two independent samples

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #37

In hypothesis testing, rejecting H# when true = ?

A. Type II error

B. Type I error

C. Null accepted

D. Correct decision

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #38

Standard deviation measures:

A. Central tendency

B. Spread of data

C. Probability

D. Count

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #39

Mean of Poisson # = 5 = ?

A. 5

B. 4

C. 0

D. 1

Discussion 0

Correct Answer: A Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Download Free WGU Applied-Probability-and-Statistics Demo

Simply submit your e-mail address below to get started with our free demo of your WGU Applied-Probability-and-Statistics exam.