BESC 3010 Exam 1 with 100%
Correct Answers
A scores frequency is determined by? - Answer-How often it occurs in the data set.
Which type of chart would be most appropriate for a nominal variable? - Answer-Bar
graph
A distribution such as income that has most of the people at the bottom or middle but a
few people with extremely high scores is referred to as... - Answer-Positively skewed
A distribution with two distinct peaks can be described as - Answer-Bimodal
A histogram is appropriate when the data are... - Answer-Quantitative
One visual difference between a bar chart and a histogram is that in a histogram.... -
Answer-The adjacent bars touch but in a bar chart they are sperate.
A normal distribution has a value of skew ness that is ... - Answer-Near zero
A frequency bar graph would be most appropriate for which measurement scales? -
Answer-Nominal or ordinal
The normal distribution is... - Answer-Mesokurtic
Which measure of central tendency works for nominal variables? - Answer-Mode
Which measure of central tendency is most appropriate for skewed distributions? -
Answer-Median
When a histogram or polygon chart for a quantitative variable has two distinct peaks
then the distribution us referred to as... - Answer-Bimodal
The three most common measures of central tendency are: - Answer-Mean, median,
mode
What is the minimum level of measurement needed to calculate the mode? - Answer-
Nominal
Which measure of central tendency is least efficient? - Answer-Mode
, What is the minimum level of measurement needed to calculate the median? - Answer-
Ordinal
In a negatively skewed distribution which measure will generally have the highest
value? - Answer-Mode
Which measure of central tendency is most influenced by outliers? - Answer-Mean
In a positively skewed distribution which measure will have the highest value? - Answer-
Mean
What is the minimum level of measurement needed to calculate the mean? - Answer-
Interval
Which measure of central tendency Is most effected by outliers? - Answer-Mean
Which of the measures of central tendency works for nominal variables? - Answer-
Neither the mean nor median works for nominal variables
When a histogram for a quantitative variable has only one peak the. The distribution is
referred to as.... - Answer-Normal
For which levels of measurement can you calculate the mode? - Answer-Both ordinal
and nominal
Which measures of central tendency can be used with data on the ratio level of
measurement? - Answer-The mean and the mode
Which measure of central tendency is always influenced by outliers? - Answer-The
mean
What is the highest level of measurement? - Answer-Ratio
When open- ended scores are present in data which measure of variability is most
appropriate? - Answer-Quartiles (such as inter quartile range)
When data is negatively skewed, which measure of variability is most appropriate? -
Answer-Quartiles
For a normal distribution which measure of variability is most efficient (in a statistical
sense) - Answer-Standard deviation
Categorical variable - Answer-Indicates different categories. Ex: gender, college major
etc.
Correct Answers
A scores frequency is determined by? - Answer-How often it occurs in the data set.
Which type of chart would be most appropriate for a nominal variable? - Answer-Bar
graph
A distribution such as income that has most of the people at the bottom or middle but a
few people with extremely high scores is referred to as... - Answer-Positively skewed
A distribution with two distinct peaks can be described as - Answer-Bimodal
A histogram is appropriate when the data are... - Answer-Quantitative
One visual difference between a bar chart and a histogram is that in a histogram.... -
Answer-The adjacent bars touch but in a bar chart they are sperate.
A normal distribution has a value of skew ness that is ... - Answer-Near zero
A frequency bar graph would be most appropriate for which measurement scales? -
Answer-Nominal or ordinal
The normal distribution is... - Answer-Mesokurtic
Which measure of central tendency works for nominal variables? - Answer-Mode
Which measure of central tendency is most appropriate for skewed distributions? -
Answer-Median
When a histogram or polygon chart for a quantitative variable has two distinct peaks
then the distribution us referred to as... - Answer-Bimodal
The three most common measures of central tendency are: - Answer-Mean, median,
mode
What is the minimum level of measurement needed to calculate the mode? - Answer-
Nominal
Which measure of central tendency is least efficient? - Answer-Mode
, What is the minimum level of measurement needed to calculate the median? - Answer-
Ordinal
In a negatively skewed distribution which measure will generally have the highest
value? - Answer-Mode
Which measure of central tendency is most influenced by outliers? - Answer-Mean
In a positively skewed distribution which measure will have the highest value? - Answer-
Mean
What is the minimum level of measurement needed to calculate the mean? - Answer-
Interval
Which measure of central tendency Is most effected by outliers? - Answer-Mean
Which of the measures of central tendency works for nominal variables? - Answer-
Neither the mean nor median works for nominal variables
When a histogram for a quantitative variable has only one peak the. The distribution is
referred to as.... - Answer-Normal
For which levels of measurement can you calculate the mode? - Answer-Both ordinal
and nominal
Which measures of central tendency can be used with data on the ratio level of
measurement? - Answer-The mean and the mode
Which measure of central tendency is always influenced by outliers? - Answer-The
mean
What is the highest level of measurement? - Answer-Ratio
When open- ended scores are present in data which measure of variability is most
appropriate? - Answer-Quartiles (such as inter quartile range)
When data is negatively skewed, which measure of variability is most appropriate? -
Answer-Quartiles
For a normal distribution which measure of variability is most efficient (in a statistical
sense) - Answer-Standard deviation
Categorical variable - Answer-Indicates different categories. Ex: gender, college major
etc.
