review functions and scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional plane.

Front

What does it mean for y to be a function of x?

Back

It means that for every value of x, there is exactly one corresponding value of y.

Front

What is a linear relationship?

Back

A linear relationship is a relationship that can be represented by a straight line on a graph.

Front

What does a positive correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

Back

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

Front

What is no association in a scatterplot?

Back

No association means there is no discernible relationship between the two variables.

Front

What is a non-linear association?

Back

A non-linear association is a relationship between two variables that does not form a straight line when graphed.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified by a pattern of points that closely follow a straight line.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually represent the relationship between two quantitative variables.

Front

What does it mean if a scatterplot shows a cluster of points?

Back

A cluster of points indicates that there is a strong relationship between the two variables in that range.