SHC - Bivariate Data, Scatter Plots and Lines of Best Fit

Front

What is bivariate data?

Back

Data that involves two variables.

Front

What does a scatter plot show?

Back

A graph that shows the relationship of two data sets.

Front

What type of association does a scatter plot with no clear trend show?

Back

None.

Front

What is a line of best fit?

Back

A straight line that best represents the data on a scatter plot.

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 the purpose of a line of best fit?

Back

To predict values and show the trend in the data.

Front

How can you determine if a scatter plot has a line of best fit?

Back

By checking if the points cluster around a straight line.

Front

What is the first step in finding a line of best fit using two points?

Back

Identify two points on the scatter plot.

Front

If you substitute a value into the line of best fit equation, what are you trying to find?

Back

The predicted value of the other variable.