Line 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 trend of the data points.

Front

What does a positive association in a scatter plot indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative association in a scatter plot indicate?

Back

As one variable increases, the other variable decreases.

Front

What is an outlier in a data set?

Back

A data point that differs significantly from other observations, often lying outside the overall pattern.

Front

How can you identify an outlier on a scatter plot?

Back

An outlier can be identified as a point that is far away from the cluster of other points.

Front

What is the purpose of a trend line in a scatter plot?

Back

To summarize the relationship between the variables and make predictions.

Front

What does it mean if there is no correlation in a scatter plot?

Back

There is no discernible relationship between the two variables.

Front

How do you use a line of best fit to make predictions?

Back

By extending the line and finding the corresponding value on the other axis.

Front

What is the first step in drawing a line of best fit?

Back

Plot the data points on a scatter plot.

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.