Pass the actual test with the help of Applied-Probability-and-Statistics study guide
Updated: Aug 08, 2026
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| Certification Vendor: | Western Governors University (WGU) |
| Exam Name: | Applied Probability and Statistics Objective Assessment |
| Exam Number: | C955 / FZO1 |
| Real Exam Qty: | 40 |
| Available Languages: | English |
| Exam Format: | Multiple Choice, Single Answer, Scenario-Based |
| Certificate Validity Period: | Valid while enrolled; competency does not expire |
| Exam Price: | Included in WGU tuition ($3,800-$4,500 per 6-month term) |
| Exam Duration: | 90 minutes |
| Passing Score: | Competency-based (approx. 65-70% cut score) |
| Recommended Training: | MindEdge Learning Platform C955 Official Course Materials |
| Exam Registration: | WGU Student Portal |
| Sample Questions: | WGU Applied-Probability-and-Statistics Sample Questions |
| Exam Way: | Online proctored via Proctorio (webcam, screen monitoring, lockdown browser) |
| Pre Condition: | No formal prerequisites; basic algebra recommended |
| Official Syllabus URL: | https://www.wgu.edu/online-courses/math/c955-applied-probability-statistics.html |
| Section | Weight | Objectives |
|---|---|---|
| Inferential Statistics & Study Design | 20% | - Confidence intervals for means/proportions - Observational studies vs experiments - Hypothesis testing framework and interpretation - Sampling methods and bias |
| Descriptive Statistics | 25% | - Measures of center: mean, median, mode - Measures of spread: range, IQR, variance, standard deviation - Types of data: categorical, discrete, continuous - Graphical displays: histograms, boxplots, scatterplots |
| Basic Numeracy & Algebra | 15% | - Arithmetic operations, fractions, decimals, percentages - Exponents, roots, and basic formulas - Linear equations, inequalities, graphing functions |
| Correlation & Regression | 20% | - Interpreting slope, intercept, and R-squared - Correlation coefficient and interpretation - Simple linear regression models - Predictions and limitations of regression |
| Probability Concepts | 20% | - Conditional probability and Venn diagrams - Normal distribution and empirical rule - Discrete and continuous probability distributions - Probability rules, independent and dependent events |
1. Probability sum for all outcomes = ?
A) 0
B) > 1
C) 1
D) < 1
2. Dataset: 3, 6, 9. Median?
A) 5
B) 3
C) 4
D) 6
3. Chi-square test used for:
A) Regression
B) Means of two samples
C) Association of categorical variables
D) Variance
4. The average commute time for workers in a city in 2021 was 35 minutes, with a standard deviation of 5 minutes.
Assuming a normal distribution, which two values encompass 95% of the data?
A) 30 minutes and 40 minutes
B) 20 minutes and 50 minutes
C) 35 minutes and 40 minutes
D) 25 minutes and 45 minutes
5. Confidence interval = sample mean ± ?
A) Critical value × SE
B) Median
C) Variance × n
D) SD only
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: A |
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