Lines of Best Fit

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the overall trend of the data points.

Front

What does a positive association in a graph indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative association in a graph indicate?

Back

As one variable increases, the other variable decreases.

Front

What is no correlation?

Back

There is no relationship between the two variables; changes in one do not affect the other.

Front

How do you determine the line of best fit?

Back

By visually assessing the scatter plot and drawing a line that minimizes the distance from all points.

Front

What is a scatter plot?

Back

A graph that uses dots to represent the values obtained for two different variables.

Front

What does a linear relationship mean?

Back

A relationship between two variables that can be represented by a straight line.

Front

What is the purpose of a line of best fit?

Back

To make predictions about one variable based on the value of another variable.

Front

What does it mean if a scatter plot has no trend?

Back

The data points do not show any clear pattern or direction.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.