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

1. Variance formula = ?

A) ##(x# # x#)²
B) #x# / n
C) x#²
D) #(x# # x#)² / (n # 1)

2. Correlation coefficient r = #0.9 indicates:

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

3. Type II error occurs when:

A) Null accepted when false
B) Correct decision
C) Null rejected when true
D) Data error

4. Sample correlation r = 0.6. R² = ?

A) 0.36
B) 0.6
C) 0.16
D) 1

5. Probability of rolling an even number on a six-sided die?

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

Solutions: