Question 1

Discrete data measured on an ordinal, interval, or ratio scale are best graphed with a:

Accepted Answer

A)   frequency distribution.
B)   bar graph.
C)   histogram.
D)   frequency polygon. C

Question 2

A categorical variable is a _____ variable, and a variable where the scores represent a change in quantity is a _____ variable.

Accepted Answer

A)   continuous; discrete
B)   quantitative; qualitative
C)   qualitative; quantitative
D)   discrete; nominal C

Question 3

Bar graphs are used with _____ data.

Accepted Answer

A)   nominal
B)   ordinal
C)   interval
D)   ratio A

Question 4

If I collected data on the frequency of various weights for people in a weight loss program, what type of graph should I use to organize the data?

Accepted Answer

A)   A histogram
B)   A bar graph
C)   A frequency polygon
D)   A frequency distribution

Question 5

If I collected data on the number of children per family in a particular neighborhood, what type of graph should I use to organize the data?

Accepted Answer

A)   A histogram
B)   A bar graph
C)   A frequency polygon
D)   A frequency distribution

Question 6

A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____, and a graphical representation of a frequency distribution in which vertical bars centered above scores on the x-axis touch each other is a _____.

Accepted Answer

A)   histogram; bar graph
B)   frequency polygon; histogram
C)   bar graph; histogram
D)   frequency distribution; frequency polygon

Question 7

A frequency distribution represents _____, and a frequency polygon represents _____.

Accepted Answer

A)   organizing data using a table; organizing data using a bar graph
B)   organizing data using a table; organizing data using a line graph
C)   organizing data using a line graph; organizing data using a histogram
D)   organizing data using a bar graph; organizing data using a line graph

Question 8

Grouping the scores into intervals represents a _____, and listing the frequency of every score represents a _____.

Accepted Answer

A)   bar graph; histogram
B)   class interval frequency distribution; frequency distribution
C)   frequency distribution; class interval frequency distribution
D)   histogram; bar graph

Question 9

Frequency distributions are used with _____ data.

Accepted Answer

A)   only nominal
B)   only nominal and ordinal
C)   only nominal, ordinal, and interval
D)   nominal, ordinal, interval, and ratio

Question 10

If I collected data on the frequency of various ethnicities represented at a university, what type of graph should I use to organize the data?

Accepted Answer

A)   A histogram
B)   A bar graph
C)   A frequency polygon
D)   A frequency distribution

Question 11

In a _____, bars on the graph are separated from each other by a space, and in a _____, bars on the graph touch each other.

Accepted Answer

A)   frequency polygon; bar graph
B)   bar graph; histogram
C)   histogram; frequency polygon
D)   histogram; bar graph

Question 12

Explain when it is most appropriate to use a bar graph and a histogram.

Accepted Answer

The answer of Explain when it is most appropriate to...

Question 13

Continuous data measured on an ordinal, interval, or ratio scale are best graphed with a:

Accepted Answer

A)   frequency distribution.
B)   bar graph.
C)   histogram.
D)   frequency polygon.

Exam 2: Organizing Data, Variables and Measurement

Discrete data measured on an ordinal, interval, or ratio scale are best graphed with a:

A categorical variable is a _ variable, and a variable where the scores represent a change in quantity is a _ variable.

Bar graphs are used with _____ data.

If I collected data on the frequency of various weights for people in a weight loss program, what type of graph should I use to organize the data?

If I collected data on the number of children per family in a particular neighborhood, what type of graph should I use to organize the data?

A frequency distribution represents _, and a frequency polygon represents _.

Grouping the scores into intervals represents a _, and listing the frequency of every score represents a _.

Frequency distributions are used with _____ data.

If I collected data on the frequency of various ethnicities represented at a university, what type of graph should I use to organize the data?

In a _, bars on the graph are separated from each other by a space, and in a _, bars on the graph touch each other.

Explain when it is most appropriate to use a bar graph and a histogram.

Continuous data measured on an ordinal, interval, or ratio scale are best graphed with a: