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WGU C955 Applied Probability and Statistics – Pre-Assessment – Practice Questions and Correct Answers with Detailed Rationales and Comprehensive Exam Review

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This document contains Pre-Assessment practice questions with correct answers and detailed rationales covering the core concepts of WGU C955 Applied Probability and Statistics. Topics include descriptive statistics, probability, sampling methods, probability distributions, hypothesis testing, confidence intervals, correlation, regression, and data interpretation. The material is designed to reinforce key statistical concepts through realistic practice questions and comprehensive answer explanations, making it an effective resource for preparing for the Objective Assessment and overall course success.

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WGU C955 - Pre Assessment
WGU C955 - Pre Assessment
Study online at https://quizlet.com/_8takzq

1. What is 3/4 divided by 2/3? 9/8
A) 9/8
B) 5/12
C) 5/7
D) 6/7

2. A county park has hiking paths with lengths of 1.05, 10.02 miles
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

3. If there are 2 tablespoons in 1 fluid ounce, how many 6.5 tbsp
tablespoons does the following calculation yield?

4 fl oz - 1.5 tbsp

0.5 tbsp
1 tbsp
2.5 tbsp
6.5 tbsp

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



, WGU C955 - Pre Assessment
WGU C955 - Pre Assessment
Study online at https://quizlet.com/_8takzq

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

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

7. Which graph is the solution for y < 8? {{ unfilled circle on 8, ar-
A) {{ unfilled circle on 8, arrow pointing left }} row 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 }}

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

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



, WGU C955 - Pre Assessment
WGU C955 - Pre Assessment
Study online at https://quizlet.com/_8takzq

10. What is the correct line graph for y = -2x + 9? (0,9) to (4.5,0)
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)

11. A normally distributed data set has a mean of 25 and 34.0
a standard deviation of 2.

Which percentage of the data falls between 23 and 25?

A) 34.0
B) 68.0
C) 95.0
D) 99.7

12. A given data set is normally distributed with a mean of 190-210
200 and a standard deviation of 5.

Which two values does 95% of the data fall between?

A) 180-220
B) 185-225
C) 190-210
D) 195-235

13. In a statistics class, 40 students are asked to write their 21
age on a piece of paper and place the paper in a box.
After rotating and shaking the box, 5 pieces of paper
are drawn from the box at random. The data results
are as follows:

36

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