BESC 3010 TEST ONE EXAM STUDY
QUESTIONS WITH MULTIPLE
CHOICES
What is the minimum level of measurement needed to calculate the mean?
ratio
ordinal
nominal
interval - Answer-interval
Which measure of central tendency is most appropriate for skewed distributions?
median
mean
no measure is appropriate
mode - Answer-median
Which measure requires a degrees of freedom calculation?
population range
sample variance
population standard deviation
sample IQR - Answer-sample variance
A narrow distribution that is sharply pointed in the middle and that has many outliers is
also called _____.
leptokurtic
negatively skewed
platykurtic
positively skewed - Answer-leptokurtic
What is the range for this data set?
5, 1, 2, 6, 5
cannot be calculated
6
2
5 - Answer-5
If the formula for the population standard deviation were used with sample data, then
result would be...
impossible to calculate
, too small
identical
too big - Answer-too small
One good use of the range is to...
identify missing values
check for outliers
help in calculations of the standard deviation
separate groups of cases - Answer-check for outliers
If scores in a data set are very different from each other, then the standard deviation...
will be low
will be biased for the sample
cannot be calculated
will be high - Answer-will be high
Which measure of variation is LEAST sensitive to outliers?
IQR
standard deviation
all are the same
range - Answer-IQR
What is the IQR for this data set?
6, 4, 6, 6, 1, 6, 3, 4
5
0.5
cannot be calculated
2.5 - Answer-2.5
For a normal distribution, kurtosis is...
negative
undefined
0
1 - Answer-0
What is the range for this data set?
5, 3, 7+, 1, 4
1
6+
cannot be calculated
QUESTIONS WITH MULTIPLE
CHOICES
What is the minimum level of measurement needed to calculate the mean?
ratio
ordinal
nominal
interval - Answer-interval
Which measure of central tendency is most appropriate for skewed distributions?
median
mean
no measure is appropriate
mode - Answer-median
Which measure requires a degrees of freedom calculation?
population range
sample variance
population standard deviation
sample IQR - Answer-sample variance
A narrow distribution that is sharply pointed in the middle and that has many outliers is
also called _____.
leptokurtic
negatively skewed
platykurtic
positively skewed - Answer-leptokurtic
What is the range for this data set?
5, 1, 2, 6, 5
cannot be calculated
6
2
5 - Answer-5
If the formula for the population standard deviation were used with sample data, then
result would be...
impossible to calculate
, too small
identical
too big - Answer-too small
One good use of the range is to...
identify missing values
check for outliers
help in calculations of the standard deviation
separate groups of cases - Answer-check for outliers
If scores in a data set are very different from each other, then the standard deviation...
will be low
will be biased for the sample
cannot be calculated
will be high - Answer-will be high
Which measure of variation is LEAST sensitive to outliers?
IQR
standard deviation
all are the same
range - Answer-IQR
What is the IQR for this data set?
6, 4, 6, 6, 1, 6, 3, 4
5
0.5
cannot be calculated
2.5 - Answer-2.5
For a normal distribution, kurtosis is...
negative
undefined
0
1 - Answer-0
What is the range for this data set?
5, 3, 7+, 1, 4
1
6+
cannot be calculated
