WGU C955 Applied Probability and
Statistics Final Exam Prep (Latest
2026/2027) | 150 Screen-Based
Practice Questions, Verified
Answers & Detailed Explanatory
Rationales
Ace your Western Governors University math
requirement with this premium 150-question practice
test bank built specifically for the WGU C955 Applied
Probability and Statistics Final Exam and Pre-
Assessment. This complete 2026/2027 upload
covers all high-yield competencies including
qualitative vs. quantitative variables, descriptive
statistics (mean, median, mode), data displays
(histograms, boxplots, scatterplots), probability rules
(independent, dependent, and mutually exclusive
events), linear regression modeling, and correlation
vs. causation. Each question features a verified
correct answer paired with a highly structured,
universal-language rationale to guarantee absolute
mastery, clear up common misconceptions, and
secure your pass on the first attempt.
, WGU C955 Applied Probability and Statistics Final Exam Practice
Bank
1. What is the probability of drawing a red card from a standard deck of 52 playing cards?
A) 1/4
B) 1/3
C) 1/2
D) 2/3
Answer: C
Rationale: In a standard deck, there are 26 red cards (hearts and diamonds) out of 52
total cards. Therefore, the probability is 26/52 = 1/2.
2. A coin is flipped 4 times. How many different outcomes are possible?
A) 8
B) 16
C) 32
D) 64
Answer: B
Rationale: The base is 2 (outcomes per flip) and the exponent is 4 (number of flips). 2⁴ =
2 × 2 × 2 × 2 = 16 possible outcomes.
3. Which of the following best describes discrete data?
A) Has values within a range, measured not counted
B) Has distinct values, can be counted, has unconnected points
C) Has no gaps between data points
D) Involves infinite fractions along a number line
Answer: B
Rationale: Discrete data consists of separate, distinct values that can be counted in
whole numbers. It features unconnected points on a graph view, unlike continuous data
which is measured.
4. A medical researcher measures the body temperature of 50 patients in degrees
Fahrenheit. What level of measurement scale does this data represent?
A) Nominal
B) Ordinal
, C) Interval
D) Ratio
Answer: C
Rationale: Temperature in Fahrenheit is interval data because arbitrary values have
meaning and differences are uniform. It lacks a true absolute zero point since zero
degrees does not mean an absence of heat.
5. A dataset tracking retail return reasons records categories like "Defective," "Wrong
Size," and "Changed Mind." What type of variable is this?
A) Qualitative Nominal
B) Qualitative Ordinal
C) Quantitative Discrete
D) Quantitative Continuous
Answer: A
Rationale: The return reasons represent names or descriptive categories. Because
these labels have no logical or inherent ranking order, they are classified as nominal
data.
6. Consider the following dataset of delivery times in days: 3, 5, 5, 7, 10, 12, 15, 20. What
is the median of this data?
A) 5
B) 7
C) 8.5
D) 9
Answer: C
Rationale: With an even number of values (8 data points), the median is the average of
the two middle scores. The middle scores are 7 and 10, so (7 + 10) / 2 = 8.5.
7. A dataset contains the values 10, 12, 14, 15, and 90. Which measure of central
tendency will be influenced the least by the extreme value of 90?
A) Mean
B) Median
C) Range
D) Midrange
Answer: B
, Rationale: The median is position-based and resistant to extreme values or outliers. The
mean incorporates the value of every point, making it highly sensitive to outliers like 90.
8. If a population distribution has a long tail stretching to the left, how is its symmetry
classified?
A) Symmetrical
B) Positively skewed (skewed right)
C) Negatively skewed (skewed left)
D) Bimodal
Answer: C
Rationale: A distribution is skewed in the direction of its long tail. A tail extending to the
left indicates a negative skew, meaning the mean is typically lower than the median.
9. What is the range of the following dataset: 45, 12, 89, 34, 76, 21?
A) 12
B) 68
C) 77
D) 89
Answer: C
Rationale: The range is computed by subtracting the minimum value from the maximum
value in a dataset. Range = 89 - 12 = 77.
10. Which type of visual data display uses a box structure to highlight the median, quartiles,
and extreme outliers of a quantitative dataset?
A) Histogram
B) Boxplot
C) Scatterplot
D) Pie chart
Answer: B
Rationale: A boxplot (box-and-whisker plot) visualizes the five-number summary of a
dataset. It explicitly highlights the minimum, first quartile, median, third quartile, and
maximum values.
Statistics Final Exam Prep (Latest
2026/2027) | 150 Screen-Based
Practice Questions, Verified
Answers & Detailed Explanatory
Rationales
Ace your Western Governors University math
requirement with this premium 150-question practice
test bank built specifically for the WGU C955 Applied
Probability and Statistics Final Exam and Pre-
Assessment. This complete 2026/2027 upload
covers all high-yield competencies including
qualitative vs. quantitative variables, descriptive
statistics (mean, median, mode), data displays
(histograms, boxplots, scatterplots), probability rules
(independent, dependent, and mutually exclusive
events), linear regression modeling, and correlation
vs. causation. Each question features a verified
correct answer paired with a highly structured,
universal-language rationale to guarantee absolute
mastery, clear up common misconceptions, and
secure your pass on the first attempt.
, WGU C955 Applied Probability and Statistics Final Exam Practice
Bank
1. What is the probability of drawing a red card from a standard deck of 52 playing cards?
A) 1/4
B) 1/3
C) 1/2
D) 2/3
Answer: C
Rationale: In a standard deck, there are 26 red cards (hearts and diamonds) out of 52
total cards. Therefore, the probability is 26/52 = 1/2.
2. A coin is flipped 4 times. How many different outcomes are possible?
A) 8
B) 16
C) 32
D) 64
Answer: B
Rationale: The base is 2 (outcomes per flip) and the exponent is 4 (number of flips). 2⁴ =
2 × 2 × 2 × 2 = 16 possible outcomes.
3. Which of the following best describes discrete data?
A) Has values within a range, measured not counted
B) Has distinct values, can be counted, has unconnected points
C) Has no gaps between data points
D) Involves infinite fractions along a number line
Answer: B
Rationale: Discrete data consists of separate, distinct values that can be counted in
whole numbers. It features unconnected points on a graph view, unlike continuous data
which is measured.
4. A medical researcher measures the body temperature of 50 patients in degrees
Fahrenheit. What level of measurement scale does this data represent?
A) Nominal
B) Ordinal
, C) Interval
D) Ratio
Answer: C
Rationale: Temperature in Fahrenheit is interval data because arbitrary values have
meaning and differences are uniform. It lacks a true absolute zero point since zero
degrees does not mean an absence of heat.
5. A dataset tracking retail return reasons records categories like "Defective," "Wrong
Size," and "Changed Mind." What type of variable is this?
A) Qualitative Nominal
B) Qualitative Ordinal
C) Quantitative Discrete
D) Quantitative Continuous
Answer: A
Rationale: The return reasons represent names or descriptive categories. Because
these labels have no logical or inherent ranking order, they are classified as nominal
data.
6. Consider the following dataset of delivery times in days: 3, 5, 5, 7, 10, 12, 15, 20. What
is the median of this data?
A) 5
B) 7
C) 8.5
D) 9
Answer: C
Rationale: With an even number of values (8 data points), the median is the average of
the two middle scores. The middle scores are 7 and 10, so (7 + 10) / 2 = 8.5.
7. A dataset contains the values 10, 12, 14, 15, and 90. Which measure of central
tendency will be influenced the least by the extreme value of 90?
A) Mean
B) Median
C) Range
D) Midrange
Answer: B
, Rationale: The median is position-based and resistant to extreme values or outliers. The
mean incorporates the value of every point, making it highly sensitive to outliers like 90.
8. If a population distribution has a long tail stretching to the left, how is its symmetry
classified?
A) Symmetrical
B) Positively skewed (skewed right)
C) Negatively skewed (skewed left)
D) Bimodal
Answer: C
Rationale: A distribution is skewed in the direction of its long tail. A tail extending to the
left indicates a negative skew, meaning the mean is typically lower than the median.
9. What is the range of the following dataset: 45, 12, 89, 34, 76, 21?
A) 12
B) 68
C) 77
D) 89
Answer: C
Rationale: The range is computed by subtracting the minimum value from the maximum
value in a dataset. Range = 89 - 12 = 77.
10. Which type of visual data display uses a box structure to highlight the median, quartiles,
and extreme outliers of a quantitative dataset?
A) Histogram
B) Boxplot
C) Scatterplot
D) Pie chart
Answer: B
Rationale: A boxplot (box-and-whisker plot) visualizes the five-number summary of a
dataset. It explicitly highlights the minimum, first quartile, median, third quartile, and
maximum values.
