O R I G I N A L C O N TEN T
W G U C 7 8 4 • A P P L I E D H E A LT H C A R E S TAT I S T I C S • 2 0 2 0 2 7 S T U D Y E D I T I O N
Applied Healthcare Statistics
Objective assessment study guide and original practice question bank covering variables, graphs,
measures of center and spread, probability, the normal model, regression, and sampling, with answers
and rationales for every item.
55 100% 7
O R I G I N A L Q UE S T I O N S A N S W E R S E X P LA I N E D SE C TION S • E X A M C ON C E PTS
W HAT T HI S C O V E R S
S EC T I ON 1 S EC T I ON 2 S EC T I ON 3
Variables & Data Types in Healthcare Frequency Tables & Graphs Measures of Center, Spread & Boxplots
S EC T I ON 4 S EC T I ON 5 S EC T I ONS 6 -7
Probability & Two-Way Tables Normal Distribution & z-Scores Regression, Sampling & Confidence
A B O U T T HI S A S S E S S M E N T
This guide is an independently written, original question bank built for WGU C784 (Applied Healthcare Statistics). All 55 items were newly
authored for the 2026/2027 study edition and are organized into seven sections that follow the course concepts, from healthcare variables
and graphs through probability with clinical two-way tables, the normal model, correlation and regression, and sampling with confidence
intervals. Every question carries its correct answer and a worked rationale directly beneath it, so the bank supports self-paced review,
concept drills, and timed full-length mock runs.
The question count follows the full-length assessment size most commonly reported by test takers; Western Governors University does not
publish official item counts. This material is not affiliated with, endorsed by, or sourced from WGU, and it contains no real assessment
content.
W G U C 7 8 4 A P P L I E D H E A LT H C A R E S TAT I S T I C S • 2 0 2 0 2 7 S T U D Y E D I T I O N • O R I G I NA L P R A C T I C E Q U E S T I O N B A NK
Independently written original study material - not an official assessment and not affiliated with WGU.
, WGU C784 Applied Healthcare Statistics - Original Practice Question Bank 1
SECTION 1 - VARIABLES & DATA TYPES IN HEALTHCARE
Q1. An intake form records each patient as blood type A, B, AB, or O. The categories are names with no natural
ranking. What type of variable is blood type, and what is its level of measurement?
A. Categorical, nominal
B. Quantitative discrete, ratio
C. Categorical, ordinal
D. Quantitative continuous, interval
Correct Answer: A
Rationale: Blood type places each patient into an unordered category, which makes it categorical at the nominal level.
Ordinal would require a meaningful order such as disease stage I through IV.
Q2. A post-visit survey asks patients to rate the facility from 1 (very dissatisfied) to 5 (very satisfied). The ratings
can be ranked, but the gap between a 2 and a 3 is not guaranteed to equal the gap between a 4 and a 5. What is the
level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B
Rationale: The scale has a meaningful order, which rules out nominal, but the distances between adjacent points are not
demonstrably equal, which rules out interval. Ranked scales with unequal spacing are ordinal.
Q3. A birth registry records each newborn weight in grams, and weights can take any value within a plausible range,
including fractions. What type of variable is birth weight in grams?
A. Categorical nominal
B. Quantitative discrete
C. Quantitative continuous
D. An identifier, not a variable
Correct Answer: C
Rationale: Birth weight is numeric and can assume any value in an interval, including decimals, which defines a
continuous quantitative variable. Discrete variables arise from counting rather than measuring.
Q4. A readmission study records, for each patient, the number of hospital admissions during the prior year as 0, 1,
2, or more. What type of variable is the number of prior admissions?
A. Categorical nominal
B. Quantitative continuous
C. Categorical ordinal
D. Quantitative discrete
Correct Answer: D
Rationale: The variable is numeric and comes from counting whole events, so it is discrete. It is not continuous because
fractional admissions are impossible.
Independently written original study material - not an official assessment and not affiliated with WGU.
W G U C 7 8 4 • A P P L I E D H E A LT H C A R E S TAT I S T I C S • 2 0 2 0 2 7 S T U D Y E D I T I O N
Applied Healthcare Statistics
Objective assessment study guide and original practice question bank covering variables, graphs,
measures of center and spread, probability, the normal model, regression, and sampling, with answers
and rationales for every item.
55 100% 7
O R I G I N A L Q UE S T I O N S A N S W E R S E X P LA I N E D SE C TION S • E X A M C ON C E PTS
W HAT T HI S C O V E R S
S EC T I ON 1 S EC T I ON 2 S EC T I ON 3
Variables & Data Types in Healthcare Frequency Tables & Graphs Measures of Center, Spread & Boxplots
S EC T I ON 4 S EC T I ON 5 S EC T I ONS 6 -7
Probability & Two-Way Tables Normal Distribution & z-Scores Regression, Sampling & Confidence
A B O U T T HI S A S S E S S M E N T
This guide is an independently written, original question bank built for WGU C784 (Applied Healthcare Statistics). All 55 items were newly
authored for the 2026/2027 study edition and are organized into seven sections that follow the course concepts, from healthcare variables
and graphs through probability with clinical two-way tables, the normal model, correlation and regression, and sampling with confidence
intervals. Every question carries its correct answer and a worked rationale directly beneath it, so the bank supports self-paced review,
concept drills, and timed full-length mock runs.
The question count follows the full-length assessment size most commonly reported by test takers; Western Governors University does not
publish official item counts. This material is not affiliated with, endorsed by, or sourced from WGU, and it contains no real assessment
content.
W G U C 7 8 4 A P P L I E D H E A LT H C A R E S TAT I S T I C S • 2 0 2 0 2 7 S T U D Y E D I T I O N • O R I G I NA L P R A C T I C E Q U E S T I O N B A NK
Independently written original study material - not an official assessment and not affiliated with WGU.
, WGU C784 Applied Healthcare Statistics - Original Practice Question Bank 1
SECTION 1 - VARIABLES & DATA TYPES IN HEALTHCARE
Q1. An intake form records each patient as blood type A, B, AB, or O. The categories are names with no natural
ranking. What type of variable is blood type, and what is its level of measurement?
A. Categorical, nominal
B. Quantitative discrete, ratio
C. Categorical, ordinal
D. Quantitative continuous, interval
Correct Answer: A
Rationale: Blood type places each patient into an unordered category, which makes it categorical at the nominal level.
Ordinal would require a meaningful order such as disease stage I through IV.
Q2. A post-visit survey asks patients to rate the facility from 1 (very dissatisfied) to 5 (very satisfied). The ratings
can be ranked, but the gap between a 2 and a 3 is not guaranteed to equal the gap between a 4 and a 5. What is the
level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B
Rationale: The scale has a meaningful order, which rules out nominal, but the distances between adjacent points are not
demonstrably equal, which rules out interval. Ranked scales with unequal spacing are ordinal.
Q3. A birth registry records each newborn weight in grams, and weights can take any value within a plausible range,
including fractions. What type of variable is birth weight in grams?
A. Categorical nominal
B. Quantitative discrete
C. Quantitative continuous
D. An identifier, not a variable
Correct Answer: C
Rationale: Birth weight is numeric and can assume any value in an interval, including decimals, which defines a
continuous quantitative variable. Discrete variables arise from counting rather than measuring.
Q4. A readmission study records, for each patient, the number of hospital admissions during the prior year as 0, 1,
2, or more. What type of variable is the number of prior admissions?
A. Categorical nominal
B. Quantitative continuous
C. Categorical ordinal
D. Quantitative discrete
Correct Answer: D
Rationale: The variable is numeric and comes from counting whole events, so it is discrete. It is not continuous because
fractional admissions are impossible.
Independently written original study material - not an official assessment and not affiliated with WGU.
