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WGU Applied-Probability-and-Statistics Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Basic Numeracy & Algebra | 15% | - Linear equations, inequalities, graphing functions - Arithmetic operations, fractions, decimals, percentages - Exponents, roots, and basic formulas |
| Probability Concepts | 20% | - Conditional probability and Venn diagrams - Discrete and continuous probability distributions - Probability rules, independent and dependent events - Normal distribution and empirical rule |
| Inferential Statistics & Study Design | 20% | - Observational studies vs experiments - Sampling methods and bias - Confidence intervals for means/proportions - Hypothesis testing framework and interpretation |
| Correlation & Regression | 20% | - Simple linear regression models - Correlation coefficient and interpretation - Interpreting slope, intercept, and R-squared - Predictions and limitations of regression |
| Descriptive Statistics | 25% | - Graphical displays: histograms, boxplots, scatterplots - Measures of spread: range, IQR, variance, standard deviation - Measures of center: mean, median, mode - Types of data: categorical, discrete, continuous |
WGU Applied Probability and Statistics (FZO1 C955) Sample Questions:
A school surveyed student participation in extracurricular activities. The survey found:
* The drama club had 50% of students participate.
* The science club had 30% of students participate.
* Both clubs had 15% of students participate.
What is the probability that a student participated in the drama club, given that they attended the science club?
- A. .15
- B. .5
- C. .3
- D. .40
Correct Answer: B 🗳️
Explanation: Only visible for RealVCE members. You can sign-up / login (it's free).
Correlation r = 0.8 # strong positive relationship #
- A. True only for categorical variables
- B. True
- C. False
- D. True only when r is negative
Correct Answer: B 🗳️
Explanation: Only visible for RealVCE members. You can sign-up / login (it's free).
Dataset: 3, 6, 9. Median?
- A. 4
- B. 6
- C. 5
- D. 3
Correct Answer: B 🗳️
Explanation: Only visible for RealVCE members. You can sign-up / login (it's free).
Regression slope indicates:
- A. Intercept
- B. Correlation
- C. Change in Y per unit X
- D. R²
Correct Answer: C 🗳️
Explanation: Only visible for RealVCE members. You can sign-up / login (it's free).
Histogram vs bar chart:
- A. Histogram for numeric intervals, bar for categories
- B. None
- C. Bar for numeric, histogram for categories
- D. Same
Correct Answer: A 🗳️
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Joanna 
Cornell 
Betsy 
Sherry 
Colbert 
Benson 
Kristin 
Hugh 
Troy 
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Bishop 
Beatrice 
Ken 
Ogden 
Paddy 
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