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

1. Poisson used for:

A) Success/failure trials
B) Categorical data
C) Continuous data
D) Rare events per interval

2. There are 20 men in a room whose heights are reflected in inches as 68, 70, 73, 67, 71, 68, 76, 70, 73, 66, 68,
69, 71, 74, 73, 72, 65, 60, 70, and 78 inches respectively.
What is the median of these data?

A) 68
B) 70
C) 71
D) 73

3. A road safety research group wants to enhance road safety by analyzing the stopping distance of a car at different speeds. The group has recorded their data in the following scatterplot.

What is true about the outlier in the scatterplot?

A) The stopping distance of a car traveling at 30 mph is 190 feet.
B) The stopping distance of a car traveling at 40 mph is 560 feet.
C) The stopping distance of a car traveling at 10 mph is 20 feet.
D) The stopping distance of a car traveling at 60 mph is 500 feet.

4. Boxplot shows:

A) Probability
B) Median, quartiles, outliers
C) Frequency counts
D) Scatterplots

5. Type II error # is:

A) Sample error
B) Accept H# when false
C) 1 # #
D) Reject H# when true

Solutions: