WGU D772
Objective Assessment
Actual Questions & Answers
100% Guaranteed to Pass the Exam
THIS EXAM CONSIST OF
➢ Questions covering WGU D772 Objective Assessment
➢ multiple-choice format (A, B, C, D) with Correct Answers
➢ 100% guaranteed pass
➢ 5o Questions with 100% Correct Answers
,1. What is one example of a sample from a research study?
• A. All bees in the world
• B. A set of 100 randomly collected bees from a hive
• C. The hive itself
• D. The queen bee
Correct Answer: B. A set of 100 randomly collected bees from a hive
Expert Rationale: A sample is a subset of the population used to make inferences about the
larger group. In this case, the 100 bees are the sample drawn from the larger bee population.
2. What is one example of an individual in an allergy treatment study?
• A. A group of patients receiving treatment
• B. The hospital where the study is conducted
• C. A patient who is part of the study
• D. The medication being tested
Correct Answer: C. A patient who is part of the study
Expert Rationale: In statistics, an individual refers to one subject or unit being observed. Here, a
single patient is the unit of study.
3. To determine customer product preferences, a clothing company uses a computer to fairly
select 100 of its customers to participate in an interview. What is the sampling method
described in this situation?
• A. Stratified sampling
• B. Convenience sampling
• C. Systematic sampling
• D. Simple random sampling
, Correct Answer: D. Simple random sampling
Expert Rationale: Each customer has an equal chance of being selected. This is the definition of
simple random sampling, which ensures fairness and reduces selection bias.
4. What is the advantage of using simple random sampling?
• A. It ensures specific groups are always represented
• B. It is the most straightforward and effective way to produce representative data
• C. It avoids the need for large sample sizes
• D. It eliminates all forms of bias
Correct Answer: B. It is the most straightforward and effective way to produce representative
data
Expert Rationale: While not bias-free, simple random sampling is statistically reliable because it
gives every member of the population an equal chance of selection, which increases
representativeness.
5. What is one example of an experiment?
• A. Asking students their favorite subject
• B. To measure the effect of light on attention span, researchers recruit participants and
randomly assign them to two rooms, one with artificial light and the other with natural
light.
• C. A survey about eating habits
• D. Collecting rainfall measurements
Correct Answer: B. To measure the effect of light on attention span…
Expert Rationale: An experiment involves manipulating an independent variable (light
conditions) and observing its effect on a dependent variable (attention span).
6. What role does the researcher play in an experiment?
• A. Report findings only
• B. Manipulate variables and observe the effects
Objective Assessment
Actual Questions & Answers
100% Guaranteed to Pass the Exam
THIS EXAM CONSIST OF
➢ Questions covering WGU D772 Objective Assessment
➢ multiple-choice format (A, B, C, D) with Correct Answers
➢ 100% guaranteed pass
➢ 5o Questions with 100% Correct Answers
,1. What is one example of a sample from a research study?
• A. All bees in the world
• B. A set of 100 randomly collected bees from a hive
• C. The hive itself
• D. The queen bee
Correct Answer: B. A set of 100 randomly collected bees from a hive
Expert Rationale: A sample is a subset of the population used to make inferences about the
larger group. In this case, the 100 bees are the sample drawn from the larger bee population.
2. What is one example of an individual in an allergy treatment study?
• A. A group of patients receiving treatment
• B. The hospital where the study is conducted
• C. A patient who is part of the study
• D. The medication being tested
Correct Answer: C. A patient who is part of the study
Expert Rationale: In statistics, an individual refers to one subject or unit being observed. Here, a
single patient is the unit of study.
3. To determine customer product preferences, a clothing company uses a computer to fairly
select 100 of its customers to participate in an interview. What is the sampling method
described in this situation?
• A. Stratified sampling
• B. Convenience sampling
• C. Systematic sampling
• D. Simple random sampling
, Correct Answer: D. Simple random sampling
Expert Rationale: Each customer has an equal chance of being selected. This is the definition of
simple random sampling, which ensures fairness and reduces selection bias.
4. What is the advantage of using simple random sampling?
• A. It ensures specific groups are always represented
• B. It is the most straightforward and effective way to produce representative data
• C. It avoids the need for large sample sizes
• D. It eliminates all forms of bias
Correct Answer: B. It is the most straightforward and effective way to produce representative
data
Expert Rationale: While not bias-free, simple random sampling is statistically reliable because it
gives every member of the population an equal chance of selection, which increases
representativeness.
5. What is one example of an experiment?
• A. Asking students their favorite subject
• B. To measure the effect of light on attention span, researchers recruit participants and
randomly assign them to two rooms, one with artificial light and the other with natural
light.
• C. A survey about eating habits
• D. Collecting rainfall measurements
Correct Answer: B. To measure the effect of light on attention span…
Expert Rationale: An experiment involves manipulating an independent variable (light
conditions) and observing its effect on a dependent variable (attention span).
6. What role does the researcher play in an experiment?
• A. Report findings only
• B. Manipulate variables and observe the effects
