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WGU Applied-Probability-and-Statistics Exam Syllabus Topics:

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

1. Standard deviation increases #

A) Variance decreases
B) Mean increases
C) Data closer
D) Data more spread out

2. In a standard normal distribution, z-score for the mean = ?

A) 0
B) #1
C) 1
D) Cannot determine

3. A child's parents want to analyze the relationship between the daily high temperature and ice cream sales at their child's ice cream stand. They create the following scatterplot.

What is the estimated value of r, the correlation coefficient, between these variables?

A) 0.93
B) 0.39
C) #0.39
D) #0.93

4. Two dice rolled, probability of both even = ?

A) 1/6
B) 1/2
C) 1/4
D) 1/3

5. Standard deviation squared = ?

A) Variance
B) Median
C) Mean
D) Standard error

Solutions: