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WGU Applied-Probability-and-Statistics Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Statistical Inference | - Estimation and Confidence Intervals
|
| Probability Theory | - Fundamental Probability Concepts
|
| Regression and Modeling | - Linear Relationships
|
| Descriptive Statistics | - Two Variable Data Analysis
|
WGU Applied Probability and Statistics (FZO1 C955) Sample Questions:
1. Type I error # = 0.05 means:
A) Sample size 5%
B) 5% chance rejecting true null
C) Confidence = 5%
D) 5% chance accepting false null
2. Two independent events: P(A) = 0.3, P(B) = 0.2. P(A or B) = ?
A) 0.1
B) 0.06
C) 0.44
D) 0.5
3. Regression R² = 0.64. Interpretation?
A) Correlation = 0.64
B) 64% chance of prediction
C) Slope = 0.64
D) 64% of variation in Y explained by X
4. Boxplot shows:
A) Probability
B) Scatterplots
C) Frequency counts
D) Median, quartiles, outliers
5. A teacher plots the test scores of a class using the box plot.
What is true about the test scores?
A) The median score for Class A is 80 points.
B) The median score for Class A is 88 points.
C) The median score for Class A is 70 points.
D) The median score for Class A is 75 points.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: A |
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