Ordinary arithmetic operations are meaningful

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.


Answer: b. only with quantitative data

Categorical data

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 non numeric


Answer: c. are labels used to identify attributes of elements

Categorical data

Categorical data

a. must be numeric
b. must be nonnumeric
c. cannot be numeric
d. may be either numeric or nonnumeric


Answer: d. may be either numeric or nonnumeric

The number of cases will always be the same as the number of

The number of cases will always be the same as the number of

a. variables
b. elements
c. data sets
d. data


Answer: b. elements

In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a

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.


Answer: a. categorical variable

Quantitative data

Quantitative data

a. are always nonnumeric
b. may be either numeric or nonnumeric
c. are always numeric
d. None of these alternatives is correct.


Answer: c. are always numeric