Scatterplots!

Front

What is a scatterplot?

Back

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

Front

What does a positive linear relationship look like in a scatterplot?

Back

In a positive linear relationship, as one variable increases, the other variable also increases, resulting in a line that slopes upwards.

Front

What does a negative linear relationship look like in a scatterplot?

Back

In a negative linear relationship, as one variable increases, the other variable decreases, resulting in a line that slopes downwards.

Front

What does 'no relationship' mean in a scatterplot?

Back

'No relationship' means that there is no discernible pattern or correlation between the two variables, and the data points are scattered randomly.

Front

What is a trend line in a scatterplot?

Back

A trend line is a straight line that best represents the data points in a scatterplot, showing the general direction of the data.

Front

How can you tell if a trend line is correctly placed?

Back

A correctly placed trend line should pass through the center of the data points, minimizing the distance from the points to the line.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually display the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if a scatterplot has a constant relationship?

Back

A constant relationship means that the value of one variable does not change regardless of the value of the other variable, resulting in a horizontal line.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Front

What is an example of a positive linear relationship?

Back

An example of a positive linear relationship is the relationship between hours studied and test scores, where more study time generally leads to higher scores.