Deck 2: Organizing Data, Variables and Measurement

Question 1

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

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

Answer 1

class interval frequency distribution; frequency distribution

Question 2

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

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

Answer 2

qualitative; quantitative

Question 3

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 _____.

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

Answer 3

bar graph; histogram

Question 4

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

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 5

Bar graphs are used with _____ data.

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

Question 6

Frequency distributions are used with _____ data.

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

Question 7

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

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

Question 8

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

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

Question 9

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

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

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?

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

Question 11

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

Question 12

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?

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

Question 13

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