Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation that displays the relationship between two quantitative variables, using dots to represent data points.

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 that there is no discernible relationship between the two variables; changes in one do not predict changes in the other.

Front

What is the purpose of using scatterplots?

Back

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

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is when the data points in a scatterplot can be approximated by a straight line, indicating a consistent rate of change.

Front

What is a nonlinear relationship in a scatterplot?

Back

A nonlinear relationship is when the data points do not form a straight line, indicating that the rate of change varies.

Front

How can you predict values using a scatterplot?

Back

You can predict values by observing the trend in the scatterplot and estimating the value based on the relationship shown.

Front

What does the term 'association' refer to in the context of scatterplots?

Back

Association refers to the relationship between two variables, which can be positive, negative, or nonexistent.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far from the trend of the rest of the data, which can indicate anomalies or errors in data collection.