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WGU D772 OBJECTIVE ASSESSMENT AND Actual EXAM
NEWEST 2026 TEST BANK| D772 STATISTICAL DATA LITERACY
OA FINAL WITH COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
SECTION 1: DATA TYPES, MEASUREMENT SCALES, AND DATA COLLECTION
(Questions 1–30)
1. A hospital records the blood type of every patient (A, B, AB, O). Blood type is
an example of which measurement scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: A) Nominal
Rationale: Nominal data consist of categories with no inherent order or ranking.
Blood types are labels; one is not greater than another.
2. A patient satisfaction survey asks: "How satisfied are you?" with options:
Very Dissatisfied, Dissatisfied, Neutral, Satisfied, Very Satisfied. This is what
type of data?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: B) Ordinal
Rationale: Ordinal data have a meaningful order or ranking, but the intervals
pg. 1
,2
between categories are not necessarily equal or quantifiable. The difference
between "Satisfied" and "Very Satisfied" is not numerically defined.
3. A nurse measures the weight of a newborn in kilograms. Weight in kilograms
is an example of which measurement scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: D) Ratio
Rationale: Ratio data have a true zero point and equal intervals. Weight can be
zero (absence of mass), and 2 kg is exactly twice as much as 1 kg.
4. Temperature measured in degrees Celsius is an example of which scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: C) Interval
Rationale: Celsius has equal intervals but no true zero (0°C does not mean absence
of heat). Therefore, ratios are not meaningful (20°C is not twice as hot as 10°C).
5. A researcher collects data on the number of times a patient presses the nurse
call button per day. This variable is:
• A) Continuous
• B) Discrete
• C) Ordinal
• D) Nominal
pg. 2
,3
Answer: B) Discrete
*Rationale: Discrete data are countable and take on finite or countably infinite
values (0, 1, 2, 3…). Time-to-event is continuous. Presses are countable integers.*
6. The length of time a patient spends in the emergency department (in
minutes) is an example of:
• A) Discrete quantitative
• B) Continuous quantitative
• C) Qualitative ordinal
• D) Qualitative nominal
Answer: B) Continuous quantitative
Rationale: Time is measured on a continuous scale and can take any value within a
range (e.g., 47.25 minutes).
7. A survey question asks: "What is your highest level of education?" with
options: High School, Associate, Bachelor, Master, Doctorate. This is:
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: B) Ordinal
Rationale: Education levels have a clear rank order, but the "distance" between
levels is not a standardized numerical interval.
8. A researcher assigns subjects to a treatment group or a control group using a
computer-generated random number table. This is an example of:
• A) Stratified sampling
• B) Random assignment
• C) Systematic sampling
• D) Convenience sampling
pg. 3
, 4
Answer: B) Random assignment
Rationale: Random assignment ensures each participant has an equal chance of
being placed into any group, balancing out confounding variables. Random
sampling is about selecting the sample from the population.
9. A study selects every 10th patient from an admission list. This is what type of
sampling?
• A) Simple random
• B) Systematic
• C) Stratified
• D) Cluster
Answer: B) Systematic
Rationale: Systematic sampling selects subjects at regular intervals from a list. It is
often easier to implement than simple random sampling, though it can introduce
bias if the list has a periodic pattern.
10. A researcher divides a population into subgroups based on age and then
randomly selects from each subgroup proportionally. This is:
• A) Cluster sampling
• B) Stratified random sampling
• C) Convenience sampling
• D) Quota sampling
Answer: B) Stratified random sampling
Rationale: Stratified sampling ensures representation from each subgroup
(stratum). It improves precision when the strata are homogeneous internally but
differ from each other.
11. A nurse surveys only patients who are in the waiting room on a Tuesday
morning. This sample is likely to suffer from:
• A) Non-response bias
• B) Selection bias (convenience sample)
pg. 4
WGU D772 OBJECTIVE ASSESSMENT AND Actual EXAM
NEWEST 2026 TEST BANK| D772 STATISTICAL DATA LITERACY
OA FINAL WITH COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
SECTION 1: DATA TYPES, MEASUREMENT SCALES, AND DATA COLLECTION
(Questions 1–30)
1. A hospital records the blood type of every patient (A, B, AB, O). Blood type is
an example of which measurement scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: A) Nominal
Rationale: Nominal data consist of categories with no inherent order or ranking.
Blood types are labels; one is not greater than another.
2. A patient satisfaction survey asks: "How satisfied are you?" with options:
Very Dissatisfied, Dissatisfied, Neutral, Satisfied, Very Satisfied. This is what
type of data?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: B) Ordinal
Rationale: Ordinal data have a meaningful order or ranking, but the intervals
pg. 1
,2
between categories are not necessarily equal or quantifiable. The difference
between "Satisfied" and "Very Satisfied" is not numerically defined.
3. A nurse measures the weight of a newborn in kilograms. Weight in kilograms
is an example of which measurement scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: D) Ratio
Rationale: Ratio data have a true zero point and equal intervals. Weight can be
zero (absence of mass), and 2 kg is exactly twice as much as 1 kg.
4. Temperature measured in degrees Celsius is an example of which scale?
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: C) Interval
Rationale: Celsius has equal intervals but no true zero (0°C does not mean absence
of heat). Therefore, ratios are not meaningful (20°C is not twice as hot as 10°C).
5. A researcher collects data on the number of times a patient presses the nurse
call button per day. This variable is:
• A) Continuous
• B) Discrete
• C) Ordinal
• D) Nominal
pg. 2
,3
Answer: B) Discrete
*Rationale: Discrete data are countable and take on finite or countably infinite
values (0, 1, 2, 3…). Time-to-event is continuous. Presses are countable integers.*
6. The length of time a patient spends in the emergency department (in
minutes) is an example of:
• A) Discrete quantitative
• B) Continuous quantitative
• C) Qualitative ordinal
• D) Qualitative nominal
Answer: B) Continuous quantitative
Rationale: Time is measured on a continuous scale and can take any value within a
range (e.g., 47.25 minutes).
7. A survey question asks: "What is your highest level of education?" with
options: High School, Associate, Bachelor, Master, Doctorate. This is:
• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio
Answer: B) Ordinal
Rationale: Education levels have a clear rank order, but the "distance" between
levels is not a standardized numerical interval.
8. A researcher assigns subjects to a treatment group or a control group using a
computer-generated random number table. This is an example of:
• A) Stratified sampling
• B) Random assignment
• C) Systematic sampling
• D) Convenience sampling
pg. 3
, 4
Answer: B) Random assignment
Rationale: Random assignment ensures each participant has an equal chance of
being placed into any group, balancing out confounding variables. Random
sampling is about selecting the sample from the population.
9. A study selects every 10th patient from an admission list. This is what type of
sampling?
• A) Simple random
• B) Systematic
• C) Stratified
• D) Cluster
Answer: B) Systematic
Rationale: Systematic sampling selects subjects at regular intervals from a list. It is
often easier to implement than simple random sampling, though it can introduce
bias if the list has a periodic pattern.
10. A researcher divides a population into subgroups based on age and then
randomly selects from each subgroup proportionally. This is:
• A) Cluster sampling
• B) Stratified random sampling
• C) Convenience sampling
• D) Quota sampling
Answer: B) Stratified random sampling
Rationale: Stratified sampling ensures representation from each subgroup
(stratum). It improves precision when the strata are homogeneous internally but
differ from each other.
11. A nurse surveys only patients who are in the waiting room on a Tuesday
morning. This sample is likely to suffer from:
• A) Non-response bias
• B) Selection bias (convenience sample)
pg. 4
