Chapter 2 Lesson 3 Quiz

Bar graphs can be used to represent categorical data.

• True
• False

When a graph has no clear trend, it means the variables are related.

• True
• False

Scientists control changes in the independent variable.

• True
• False

Data points do not fall in a straight line on a nonlinear graph.

• True
• False

When scientists use graphs to identify trends, they are making a forecast about what will happen in the future.

• True
• False

The ________________ variable is the variable that responds to changes.

• independent
• dependent

A prediction is a visual representation, or a picture, of data.

• True
• False

Scientists study graphs to help them identify ________________ in the data.

• pictures
• trends

A line graph in which the data points yield a straight line is a(n) ________________ graph.

• linear
• nonlinear

An outlier is a data point that is clearly not part of a graph’s trend.

• True
• False