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BUAD 2305 Midterm Review Flashcards | StudBud
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BUAD 2305 Midterm Review
BUAD 2305 Midterm Review
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1
The data measured on ordinal scale exhibits all the properties of data measured on
ratio scale
nominal and interval scales
interval scale
nominal scale
2
A method of assigning probabilities based upon judgment is referred to as the _____ method.
classical
subjective
probability
relative
3
The sum of frequencies for all classes will always equal
a value between 0 and 1.
1.
the number of elements in a data set.
the number of classes.
4
The collection of all possible sample points in an experiment is
the sample space.
an event.
the population.
a combination.
5
The value which has half of the observations above it and half the observations below it is called the
median
midrange
mode
mean
6
When computing the mean, the smallest value
can never be negative
can never be less than the mean
can never be zero
can be any value
7
Which of the following graphical methods shows the relationship between two variables?
Pie chart
Crosstabulation
Histogram
Dot plot
8
An important numerical measure of the shape of a distribution is the
z-score
5-number summary
coefficient of variation
skewness
9
Quantitative data
are always numeric.
are never numeric.
are always non-numeric.
may be either numeric or non-numeric.
10
A method of assigning probabilities which assumes that the experimental outcomes are equally likely is referred to as
objective method.
classical method.
experimental method.
subjective method.
11
An unusually small or unusually large data value is called
a deviation.
correlation coefficient.
an outlier.
a variable.
12
Data are
always categorical.
always non-numeric.
the raw material of statistics.
always numeric.
13
μ
is an example of a
ample statistic.
population parameter.
sample mean.
population variance.
14
Categorical data
are labels used to identify attributes of elements.
cannot be numeric.
indicate either how much or how many.
must be nonnumeric.
15
The scale of measurement that is used to rank order the observation for a variable is called the _____ scale.
ratio
nominal
interval
ordinal
16
The difference between the largest and the smallest data values is the
range
interquartile range
coefficient of variation
variance
17
The intersection of two mutually exclusive events
must always be equal to 0.
can be any value between 0 to 1.
must always be equal to 1.
can be any positive value.
18
Which of the following is a measure of variability?
midrange
interquartile range
quartiles
percentiles
19
The union of events
A
and
B
is the event containing all the sample points belonging to
B or A.
A or B or both.
A or B, but not both.
A or B.
20
The 50th percentile is the
median
midrange
mode
mean
21
The 75th percentile is referred to as the _____ quartile.
fourth
first
second
third
22
The relative frequency of a class is computed by
dividing the frequency of the class by the sample size.
dividing the frequency of the class by the midpoint.
dividing the sample size by the frequency of the class.
dividing the midpoint of the class by the sample size.
23
Which of the following provides a measure of central tendency for the data?
Range
Mean
Variance
Standard deviation
24
The sum of the percent frequencies for all classes will always equal
one
the number of elements in the study.
100.
the number of classes.
25
The most frequently occurring value of a data set is called the
mode
mean
median
midrange
26
The scale of measurement that has an inherent zero value defined is the _____ scale.
ordinal
nominal
ratio
interval