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

Accepted Answer

A class interval frequency distribution groups scores into intervals, while a frequency distribution lists the frequency of every score.

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

Accepted Answer

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

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

Accepted Answer

A bar graph uses separated bars to represent different categories, while a histogram uses touching bars to represent continuous data.

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

Accepted Answer

A frequency distribution organizes data using a table to show the frequency of each data point, while a frequency polygon uses a line graph to represent the distribution of frequencies.

Question 5

Bar graphs are used with _____ data.
A) nominal
B) ordinal
C) interval
D) ratio

Accepted Answer

The answer of Bar graphs are used with _____ data.
A)...

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

Accepted Answer

Frequency distributions can be used with all types of data: 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.

Accepted Answer

A histogram is best suited for displaying discrete data measured on an ordinal, interval, or ratio scale, as it shows the distribution of data across different intervals.

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.

Accepted Answer

The answer of Continuous data measured on an ordinal, interval,...

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

Accepted Answer

In a bar graph, bars are separated by spaces to show discrete categories, while in a histogram, bars touch each other to represent continuous data intervals.

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

Accepted Answer

A bar graph is used to organize data into distinct categories, making it the most suitable option for representing the frequency of various ethnicities represented at a university.

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

Accepted Answer

A histogram is a graphical representation of the distribution of data. It is used to visualize the frequency of data points occurring within specified ranges, called bins. In this case, the data points are the number of children per family, and the bins could be different ranges of family sizes. A histogram would be an appropriate choice to organize this data because it would allow us to see the distribution of family sizes in the neighborhood.

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

Accepted Answer

The answer of If I collected data on the frequency...

Question 13

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...

Quiz 2: Organizing Data, Variables and Measurement

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

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

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

Bar graphs are used with _____ data.

Frequency distributions are used with _____ data.

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

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

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

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?

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?

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?

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