23. Another name for "observations" is
a.
views
b.
variables
c.
cases
d.
None of these alternatives is correct.
ANS: C PTS: 1 TOP: Descriptive Statistics
24. Quantitative data
a.
are always nonnumeric
b.
may be either numeric or nonnumeric
c.
are always numeric
d.
None of these alternatives is correct.
ANS: C PTS: 1 TOP: Descriptive Statistics
25. In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a
a.
categorical variable
b.
quantitative variable
c.
categorical or quantitative variable, depending on how the respondents answered the question
d.
None of these alternatives is correct.
ANS: A PTS: 1 TOP: Descriptive Statistics
26. The number of cases will always be the same as the number of
a.
variables
b.
elements
c.
data sets
d.
data
ANS: B PTS: 1 TOP: Descriptive Statistics
27. Categorical data
a.
must be numeric
b.
must be nonnumeric
c.
cannot be numeric
d.
may be either numeric or nonnumeric
ANS: D PTS: 1 TOP: Descriptive Statistics
28. Categorical data
a.
indicate either how much or how many
b.
cannot be numeric
c.
are labels used to identify attributes of elements
d.
must be nonnumeric
ANS: C PTS: 1 TOP: Descriptive Statistics
29. Ordinary arithmetic operations are meaningful
a.
only with categorical data
b.
only with quantitative data
c.
either with quantitative or categorical data
d.
None of these alternatives is correct.
ANS: B PTS: 1 TOP: Descriptive Statistics
30. Social security numbers consist of numeric values. Therefore, social security is an example of