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WGU Applied Probability and Statistics (FZO1 C955) Sample Questions:

1. 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 88 points.
B) The median score for Class A is 75 points.
C) The median score for Class A is 70 points.
D) The median score for Class A is 80 points.

2. A sociologist is investigating the relationship between educational level, high school, bachelor's, master's, and doctorate, and annual income.
How should this study be classified?

A) Categorical#quantitative
B) Categorical#categorical
C) Quantitative#quantitative
D) Quantitative#categorical

3. Chi-square test used for:

A) Association of categorical variables
B) Regression
C) Variance
D) Means of two samples

4. Regression slope indicates:

A) Correlation
B) Intercept
C) R²
D) Change in Y per unit X

5. Correlation coefficient r = #0.5 #

A) Weak positive
B) No relationship
C) Strong positive
D) Moderate negative linear relationship

Solutions: