Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional axis.

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure that describes the strength and direction of a relationship between two variables.

Front

What type of correlation exists when the outside temperature increases and the amount of layers you wear decreases?

Back

Negative correlation.

Front

If a scatter plot shows that as the age of a car increases, its value decreases, what type of correlation is this?

Back

Negative correlation.

Front

What does it mean if there is no correlation between two variables?

Back

It means that there is no predictable relationship between the two variables.

Front

How can you identify a positive correlation in a scatter plot?

Back

You can identify a positive correlation if the data points trend upwards from left to right.

Front

How can you identify a negative correlation in a scatter plot?

Back

You can identify a negative correlation if the data points trend downwards from left to right.

Front

What does a correlation of 0 mean?

Back

A correlation of 0 means there is no relationship between the two variables.