answers with solutions 2025
DEF: Information that can be expressed in statistical or numerical form - ANSWER Quantitative
Data
How do we describe categorical variables? - ANSWER Counting
T/F: We do not perform arithmetic operations on the values of categorical variables. - ANSWER
True
What are some examples of Qualitative Data? - ANSWER Gender
Zip Codes
Phone #
State of Origin
What are the steps in describing Qualitative Data? - ANSWER Step 1: determine the number of
categories of the variable
Step 2: count the number of observations in each category
Step 3: Display the data in a graph
What are some types of graphs to show Qualitative Data? - ANSWER Contingency Table
Frequency Table
Bar Chart
Pie Chart
, DEF: Type of graph used to show Qualitative Data that displays the distribution of one
categorical variable in rows and another categorical variable in columns and shows the
relationship between the two variables using frequencies or probabilities - ANSWER
Contingency Table
DEF: The intersection of any row and any column in a table - ANSWER Cell
What does the Cell provide in a Contingency Table? - ANSWER the count (frequency) for a
combination of the two variables
What does the Marginal Frequency provide in a Contingency Table? - ANSWER the totals of each
categorical variable
What does the Total provide in a Contingency Table? - ANSWER The sum of the rows OR sum of
the columns but not both
DEF: Type of graph used to show Qualitative Data that displays the distribution of a categorical
variable, showing the counts for each category next to each other for comparison purposes -
ANSWER Bar Chart
DEF: Type of graph used to show Qualitative Data that displays all the categories of a variable in
a circle, with each category shown as a proportional sector of the circle - ANSWER Pie Chart
DEF: Any characteristics, number, or quantity that can be measured or counted - ANSWER
Variable
DEF: information about qualities; information that can't actually be measured - ANSWER
Qualitative Data