Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Front

What does it mean if a scatterplot shows a positive association?

Back

A positive association means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if a scatterplot shows a negative association?

Back

A negative association means that as one variable increases, the other variable tends to decrease.

Front

What is a line of best fit?

Back

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

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the data points form a pattern that can be approximated by a straight line.

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the strength and direction of a relationship between two variables, which can be positive, negative, or none.

Front

What does a strong positive correlation look like on a scatterplot?

Back

A strong positive correlation appears as points that are closely clustered around an upward-sloping line.

Front

What does a strong negative correlation look like on a scatterplot?

Back

A strong negative correlation appears as points that are closely clustered around a downward-sloping line.

Front

What is the difference between a weak and strong correlation?

Back

A strong correlation means the data points are closely aligned to a line, while a weak correlation means the points are more spread out.

Front

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

Back

No apparent association means that there is no clear pattern or relationship between the two variables being plotted.