WGU D582 INTRO TO STATS FOR
RESEARCH EXAM PREPARATION TEST
BANK WITH CORRECT ANSWERS
●● Which category of variable describes a color preference in a study
about geographic influences?
Answer: Nominal
●● Which category of variables describes a political affiliation in a study
about shared cultural values?
Answer: Nominal
●● Which type of variable is a level of education in a study about social
media habits?
Answer: Ordinal
●● Which variable is discrete?
Answer: The number of students in a study about classroom size and
learning.
●● What is an example of a discrete variable?
Answer: The number of social media accounts in a study about
advertising.
, ●● Research on student health and wellness at a college is being
conducted. Which variable is considered continuous?
Answer: Body Weight
●● Research is being conducted about early childhood development.
Which variable of the study is continuous?
Answer: Birth Weight in Kilograms
●● For a research project, a student surveyed 100 other students, asking
them to identify their favorite musical instrument. The student wants to
create a bar chart to display the data. Which general guideline should be
followed to avoid creating a chart that is misleading?
Answer: Use plain bars rather than images.
●● A researcher collected data on standardized test scores of 10,000
participants. The researcher wants to be able to see the quartiles of the
data and to be able to identify outliers. Which type of graphical display
should be used?
Answer: Box Plot
●● A researcher wants to display the results of a marathon in a visual
format. There were 10,204 finishers, and the researcher would like to
show the relative frequencies of finishing times based on 10-minute
intervals. Which type of graphical display should be used?
RESEARCH EXAM PREPARATION TEST
BANK WITH CORRECT ANSWERS
●● Which category of variable describes a color preference in a study
about geographic influences?
Answer: Nominal
●● Which category of variables describes a political affiliation in a study
about shared cultural values?
Answer: Nominal
●● Which type of variable is a level of education in a study about social
media habits?
Answer: Ordinal
●● Which variable is discrete?
Answer: The number of students in a study about classroom size and
learning.
●● What is an example of a discrete variable?
Answer: The number of social media accounts in a study about
advertising.
, ●● Research on student health and wellness at a college is being
conducted. Which variable is considered continuous?
Answer: Body Weight
●● Research is being conducted about early childhood development.
Which variable of the study is continuous?
Answer: Birth Weight in Kilograms
●● For a research project, a student surveyed 100 other students, asking
them to identify their favorite musical instrument. The student wants to
create a bar chart to display the data. Which general guideline should be
followed to avoid creating a chart that is misleading?
Answer: Use plain bars rather than images.
●● A researcher collected data on standardized test scores of 10,000
participants. The researcher wants to be able to see the quartiles of the
data and to be able to identify outliers. Which type of graphical display
should be used?
Answer: Box Plot
●● A researcher wants to display the results of a marathon in a visual
format. There were 10,204 finishers, and the researcher would like to
show the relative frequencies of finishing times based on 10-minute
intervals. Which type of graphical display should be used?
