Exploring Line Graphs in Probability and Statistics

What is the primary purpose of a line graph?

• To show relationships between two variables

• To list data points without analysis

• To compare different categories

• To display distributions of data

Which axis typically represents the independent variable in a line graph?

• None of the above

• x-axis

• y-axis

• z-axis

What type of variables are used in line graphs?

• Qualitative variables

• Quantitative variables

• None of the above

• Arbitrary variables

Which type of variable is represented by whole numbers only?

• Independent variables

• Dependent variables

• Discrete variables

• Continuous variables

What distinguishes a continuous variable in a line graph?

• It can take any value within a range

• It only takes integer values

• It does not change over time

• It cannot be graphed

In a line graph for a discrete variable, how are the points connected?

• With straight lines

• With dotted lines

• They are not connected

• With arrows

Which variable would be considered continuous?

• Number of students in a class

• Brands of cars

• Height of individuals

• Types of fruits in a basket

Which of the following is an example of a discrete variable?

• Water volume in a bottle

• Temperature over a day

• Number of books on a shelf

• Speed of a car

How do you determine whether to connect points in a line graph?

• Based on the data type

• Always connect them

• Never connect them

• Randomly decide

What is required to create a line graph?

• A ruler and pencil

• None of the above

• An equation or description of the relationship

• A computer program