PSYCH 210 - CHAPTER 4 EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
A comparison of the person at your university earning the highest salary, likely the university
president, and the person earning the lowest, full-time salary would involve computation of which
statistic?
Question options:
a) central tendency
b) standard deviation
c) variance
d) range - Answers D
Mark is looking at distance estimates of where participants think cities are located on a map. Since
the estimates are given by x, y coordinates, Mark thinks he should use the mode as a measure of
central tendency. What other measures of central tendency are also available?
Question options:
a) median and mean
b) range and sum of squares
c) median and outliers
d) outliers and mean - Answers A
A graduate business class receives these grades on the final exam: 96, 76, 81, 87, 90, 74, 88, 95, 80,
93. What is the median test score?
Question options:
a) 88.0
b) 87.5
c) 84.5
d) 87.0 - Answers B
The number of avalanche fatalities in Colorado for the last nine seasons was reported as 7, 1, 6, 6, 7,
5, 8, 2, 3. What type of distribution do the numbers represent?
Question options:
a) multimodal
b) nonmodal
c) bimodal
d) unimodal - Answers C
The numerical summary characteristics of a population are called _____, while the numerical
summary characteristics of a sample are called _____.
Question options:
a) statistics; sum of squares
b) statistics; parameters
c) parameters; variance
, d) parameters; statistics - Answers D
These are a basketball player's number of points scored in five games: 21, 2, 15, 19, 15. Which score
seems to be an outlier?
Question options:
a) 15
b) 19
c) 2
d) 21 - Answers C
The most common score of a distribution is referred to as the:
Question options:
a) median.
b) mode.
c) mean.
d) range. - Answers B
A _____ distribution has more than two modes.
Question options:
a) bimodal
b) unimodal
c) skewed
d) multimodal - Answers B
EuroTravel Agency is marketing overseas trips to college students but needs to keep in mind the
average student's budget when setting their rates. In order to maximize the number of trips sold, the
agency decides to market to the interquartile range of the students, based on their reported budgets.
Who is in this group of students?
Question options:
a) students with budgets between the 25th percentile and 50th percentile of the group
b) students with the highest budgets only
c) students with budgets between the 25th percentile and 75th percentile of the group - Answers C
For a data set that has been skewed due to outliers, what measure of central tendency is most
accurate and should be reported?
Question options:
a) mode
b) variance
c) median
d) mean - Answers C
Which of these is NOT a reason to use the interquartile range instead of the range?
Question options:
A comparison of the person at your university earning the highest salary, likely the university
president, and the person earning the lowest, full-time salary would involve computation of which
statistic?
Question options:
a) central tendency
b) standard deviation
c) variance
d) range - Answers D
Mark is looking at distance estimates of where participants think cities are located on a map. Since
the estimates are given by x, y coordinates, Mark thinks he should use the mode as a measure of
central tendency. What other measures of central tendency are also available?
Question options:
a) median and mean
b) range and sum of squares
c) median and outliers
d) outliers and mean - Answers A
A graduate business class receives these grades on the final exam: 96, 76, 81, 87, 90, 74, 88, 95, 80,
93. What is the median test score?
Question options:
a) 88.0
b) 87.5
c) 84.5
d) 87.0 - Answers B
The number of avalanche fatalities in Colorado for the last nine seasons was reported as 7, 1, 6, 6, 7,
5, 8, 2, 3. What type of distribution do the numbers represent?
Question options:
a) multimodal
b) nonmodal
c) bimodal
d) unimodal - Answers C
The numerical summary characteristics of a population are called _____, while the numerical
summary characteristics of a sample are called _____.
Question options:
a) statistics; sum of squares
b) statistics; parameters
c) parameters; variance
, d) parameters; statistics - Answers D
These are a basketball player's number of points scored in five games: 21, 2, 15, 19, 15. Which score
seems to be an outlier?
Question options:
a) 15
b) 19
c) 2
d) 21 - Answers C
The most common score of a distribution is referred to as the:
Question options:
a) median.
b) mode.
c) mean.
d) range. - Answers B
A _____ distribution has more than two modes.
Question options:
a) bimodal
b) unimodal
c) skewed
d) multimodal - Answers B
EuroTravel Agency is marketing overseas trips to college students but needs to keep in mind the
average student's budget when setting their rates. In order to maximize the number of trips sold, the
agency decides to market to the interquartile range of the students, based on their reported budgets.
Who is in this group of students?
Question options:
a) students with budgets between the 25th percentile and 50th percentile of the group
b) students with the highest budgets only
c) students with budgets between the 25th percentile and 75th percentile of the group - Answers C
For a data set that has been skewed due to outliers, what measure of central tendency is most
accurate and should be reported?
Question options:
a) mode
b) variance
c) median
d) mean - Answers C
Which of these is NOT a reason to use the interquartile range instead of the range?
Question options:
