3.4 Scatterplots- Grade 8

Front

What is a line of best fit used for?

Back

To make predictions.

Front

How would you describe a scatterplot with a negative slope and points that are spread out?

Back

Negative and weak.

Front

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

Back

There is no relationship between the variables.

Front

What does a strong correlation in a scatterplot indicate?

Back

The points are closely clustered around a line.

Front

Which scatter plot shows a linear relationship between x and y?

Back

Graph C.

Front

What is a scatterplot?

Back

A graph that shows the relationship between two quantitative variables.

Front

What does a positive correlation in a scatterplot indicate?

Back

As one variable increases, the other variable also increases.

Front

What is the purpose of analyzing scatterplots?

Back

To identify relationships and trends between two variables.

Front

What does it mean if a scatterplot has a negative slope?

Back

As one variable increases, the other variable decreases.

Front

What is the strength of a correlation?

Back

It describes how closely the points in a scatterplot cluster around a line.