IB Math Topic 4: Statistics Vocabulary

What is an independent variable?

• the variable that changes because another variable changes

• independent variables are only found on pie charts.

• a variable most often found on the y-axis

• the variable the experimenter changes or manipulates.

A class of density curves that are symmetric, single-peaked, and bell-shaped.

• Approximately Normal
• Density Curves
• Histograms
• Unimodel

Which type of graph is this?

• Bar Graph
• Stem Plot
• Box Plot
• Histogram

This is an example of a

• Line graph

• dot plot

• box plot

• histogram

What is percentile defined as?

• The percent of values that are more a given value.

• The percent of values that are more than or equal to a given value.

• The percent of values that are less than or equal to a given value.

• The percent of values that are less than a given value.

y-axis is also called ____

• horizontal axis
• vertical axis

Decisions based through a process of chance.

• Random
• Probability
• Unlucky
• Lucky

What percentile is Q1?

• 25%

• 50%

• 75%

• 100%

What is a variable?

• something used to compare the parts of a whole

• Something that is useful for displaying data or information that changes over time

• Any display of information in tabular form, with rows and or columns named

• Any factor, trait, or condition that can exist in differing amounts or types

What is this?

• Data Table
• Tape Diagram
• Histogram
• I don't know