Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a positive correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does no correlation mean in a scatterplot?

Back

No correlation means there is no discernible relationship between the two variables; changes in one variable do not predict changes in the other.

Front

How can you identify a positive correlation in a scatterplot?

Back

A positive correlation can be identified by an upward trend in the points from left to right.

Front

How can you identify a negative correlation in a scatterplot?

Back

A negative correlation can be identified by a downward trend in the points from left to right.

Front

What is the purpose of using scatterplots in data analysis?

Back

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

Front

What is the significance of the slope in a scatterplot?

Back

The slope indicates the direction and strength of the relationship between the two variables; a steeper slope indicates a stronger relationship.

Front

What is the role of outliers in a scatterplot?

Back

Outliers are data points that deviate significantly from the overall pattern and can affect the interpretation of the correlation.

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.