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WGU Applied-Probability-and-Statistics Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Probability Concepts | 20% | - Discrete and continuous probability distributions - Conditional probability and Venn diagrams - Normal distribution and empirical rule - Probability rules, independent and dependent events |
| Topic 2: Descriptive Statistics | 25% | - Graphical displays: histograms, boxplots, scatterplots - Types of data: categorical, discrete, continuous - Measures of center: mean, median, mode - Measures of spread: range, IQR, variance, standard deviation |
| Topic 3: Basic Numeracy & Algebra | 15% | - Linear equations, inequalities, graphing functions - Exponents, roots, and basic formulas - Arithmetic operations, fractions, decimals, percentages |
| Topic 4: Correlation & Regression | 20% | - Simple linear regression models - Interpreting slope, intercept, and R-squared - Predictions and limitations of regression - Correlation coefficient and interpretation |
| Topic 5: Inferential Statistics & Study Design | 20% | - Observational studies vs experiments - Confidence intervals for means/proportions - Sampling methods and bias - Hypothesis testing framework and interpretation |
WGU Applied Probability and Statistics (FZO1 C955) Sample Questions:
1. Type II error = ?
A) Accept H# when false
B) None
C) Correct decision
D) Reject H# when true
2. Probability of exactly 1 head in 2 coin flips = ?
A) 1
B) 1/2
C) 1/4
D) 3/4
3. Dataset: 5, 7, 7, 10. Standard deviation?
A) 2.16
B) 3
C) 0
D) 1.5
4. Probability sum for all outcomes = ?
A) > 1
B) 1
C) < 1
D) 0
5. Ten teachers each had a jar of jelly beans. The jars had this number of jelly beans in each respective jar: 50,
60, 80, 80, 100, 100, 100, 120, 120, and 140.
What is the mean of these data?
A) 120
B) 80
C) 100
D) 95
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |
