WGU C955 Probability and Statistics Practice Exam (2026–2027)

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WGU C955 Probability and Statistics Practice Exam (2026–2027)

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This document is a comprehensive practice exam for WGU course C955, covering descriptive statistics, probability, and inferential statistics. It includes 150 multiple‑choice questions with detailed answers, organized into three sections: Descriptive Statistics (Qs 1–50), Probability (Qs 51–100), and Inferential Statistics (Qs 101–150). Topics range from mean, median, mode, variance, and boxplots to probability rules, distributions, hypothesis testing, confidence intervals, and sampling.

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WGU C955 PROBABILITY AND
STATISTICS OBJECTIVE ASSESSMENT
EXAM EDITION 2026 -2027 WITH
QUESTIONS AND CORRECT DETAILED
ANSWERS RANKED A+

WGU C955 Probability and Statistics Practice Exam (2026–2027)

Questions 1–50: Descriptive Statistics

1. What is the mean of 4, 6, 8, 10, 12?

A. 6

B. 8

C. 10

D. 12

Answer: B

2. What is the median of 2, 5, 7, 9, 12?

A. 5

B. 6

C. 7

D. 9

,Answer: C

3. What is the mode of 3, 4, 4, 5, 6?

A. 3

B. 4

C. 5

D. 6

Answer: B

4. Range is calculated as:

A. Mean − Median

B. Highest − Lowest

C. Sum ÷ Number of Values

D. Median − Mode

Answer: B

5. Which measure is most affected by extreme values?

A. Median

B. Mode

C. Mean

D. Range

, Answer: C

6. A distribution that is perfectly balanced around its center is:

A. Skewed left

B. Skewed right

C. Symmetrical

D. Bimodal

Answer: C

7. The middle value in an ordered data set is the:

A. Mean

B. Mode

C. Median

D. Range

Answer: C

8. What is the mean of 5, 10, 15?

A. 8

B. 10

C. 12

D. 15

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Uploaded on: June 5, 2026
Number of pages: 18
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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WGU C955 Probability and Statistics Practice Exam (2026–2027)

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