WGU C955 APPLIED PROBABILITY AND STATISTICS STUDY GUIDE 2026 CORE FORMULAS AND DATA ANALYSIS CONCEPTS REVIEW

WGU C955 APPLIED PROBABILITY AND
STATISTICS STUDY GUIDE 2026 CORE
FORMULAS AND DATA ANALYSIS
CONCEPTS REVIEW

◉ A county park has hiking paths with lengths of 1.05, 3.6, 3.17, and
2.2 miles.


What is the total length, in miles, of hiking paths in the park?
A) 9.02 miles
B) 10.02 miles
C) 10.12 miles
D) 11.2 miles
Answer: 10.02 miles


◉ If there are 2 tablespoons in 1 fluid ounce, how many tablespoons
does the following calculation yield?


4 fl oz - 1.5 tbsp


0.5 tbsp

,1 tbsp
2.5 tbsp
6.5 tbsp
Answer: 6.5 tbsp


◉ Solve for X:
X - 5/4 = 2/3
A) 3/12
B) 7/12
C) 10/12
D) 23/12
Answer: 23/12


◉ Solve for X:
X+5/3=2/3
A) -3
B) -1
C) 1
D) 3
Answer: -1


◉ Given the inequality:

,2y + 6 > 20
Which graph is the solution?
A) {{ y < 3 }}
B) {{ y > 6 }}
C) {{ y > 7 }}
D) {{ y < 7 }}
Answer: {{ y > 7 }}


◉ Which graph is the solution for y < 8?
A) {{ unfilled circle on 8, arrow pointing left }}
B) {{ filled circle on 8, arrow point left }}
C) {{ unfilled circle on 8, arrow pointing right }}
D) {{ filled circle on 8, arrow point right }}
Answer: {{ unfilled circle on 8, arrow pointing left }}


◉ Which graph is the solution for 4y - 6 > 18?
A) {{ y > 4 }}
B) {{ y > 6 }}
C) {{ y < 4 }}
D) {{ y < 6 }}
Answer: {{ y > 6 }}

, ◉ What is the correct line graph for y = 3x + 5?
A) (0,5) to (2,11)
B) (0,-5) to (2,-11)
C) (0,3) to (2,5)
D) (0,3) to (2,-7)
Answer: (0,5) to (2,11)


◉ What is the correct line graph for y = -2x + 9?
A) (0,9) to (4.5,0)
B) (0,9) to (3,0)
C) (0,-9) to (5,-19)
D) (0,-9) to (5,-24)
Answer: (0,9) to (4.5,0)


◉ A normally distributed data set has a mean of 25 and a standard
deviation of 2.


Which percentage of the data falls between 23 and 25?


A) 34.0
B) 68.0
C) 95.0