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BQA Final Exam Questions and
Answers Latest 2026
What is statistics? Ans: It is the science that deals with
collection, classification, analysis, and interpretation of
information or data.
Explain the difference between descriptive and inferential
statistics. Ans: Descriptive statistics describes sets of
data. Inferential statistics draws conclusions about the
sets of data based on sampling.
Explain how populations and samples differ. Ans: A
population is a set of units of interest to a study. A
sample is a subset of the units of a population.
Define the population of interest to the interviewers. Ans:
All people in the region who are over
18
years old
What variable is being measured? Ans: Marriage
status
Is it quantitative or qualitative? Ans: Qualitative
© 2025 All rights reserved
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Is the problem of interest to the interviewers descriptive
or inferential? Ans: Inferential
A Pareto diagram is a pie chart where the slices are
arranged from largest to smallest in a counterclockwise
direction. Ans: False
The amount spent on textbooks for the fall term was
recorded for a sample of five hundred university
students. The mean expenditure was calculated to be
$500 and the median expenditure was calculated to be
$425. Which of the following interpretations of the mean
is correct? Ans: The average of the textbook costs
sampled was $500
Which of the following is not a measure of central
tendency? Ans: range
The mean x of a data set is 39.29, and the sample
standard deviation s is 5.13. Find the interval
representing measurements within one standard
deviation of the mean. Ans: (34.16, 44.42)
__________ is a method of interpreting the standard
deviation of data that have a mound-shaped, symmetric
distribution. Ans: The Empirical Rule
According to the empirical rule, z-scores of less than -3
or greater than 3 occur very infrequently for data from a
mounded and symmetric distribution Ans: True
If a z-score is 0 or near 0, the measurement is located at
or near the mean. Ans: True
© 2025 All rights reserved
BQA Final Exam Questions and
Answers Latest 2026
What is statistics? Ans: It is the science that deals with
collection, classification, analysis, and interpretation of
information or data.
Explain the difference between descriptive and inferential
statistics. Ans: Descriptive statistics describes sets of
data. Inferential statistics draws conclusions about the
sets of data based on sampling.
Explain how populations and samples differ. Ans: A
population is a set of units of interest to a study. A
sample is a subset of the units of a population.
Define the population of interest to the interviewers. Ans:
All people in the region who are over
18
years old
What variable is being measured? Ans: Marriage
status
Is it quantitative or qualitative? Ans: Qualitative
© 2025 All rights reserved
, 2 | Page
Is the problem of interest to the interviewers descriptive
or inferential? Ans: Inferential
A Pareto diagram is a pie chart where the slices are
arranged from largest to smallest in a counterclockwise
direction. Ans: False
The amount spent on textbooks for the fall term was
recorded for a sample of five hundred university
students. The mean expenditure was calculated to be
$500 and the median expenditure was calculated to be
$425. Which of the following interpretations of the mean
is correct? Ans: The average of the textbook costs
sampled was $500
Which of the following is not a measure of central
tendency? Ans: range
The mean x of a data set is 39.29, and the sample
standard deviation s is 5.13. Find the interval
representing measurements within one standard
deviation of the mean. Ans: (34.16, 44.42)
__________ is a method of interpreting the standard
deviation of data that have a mound-shaped, symmetric
distribution. Ans: The Empirical Rule
According to the empirical rule, z-scores of less than -3
or greater than 3 occur very infrequently for data from a
mounded and symmetric distribution Ans: True
If a z-score is 0 or near 0, the measurement is located at
or near the mean. Ans: True
© 2025 All rights reserved
