Scatterplots

Front

What is a scatterplot?

Back

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

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 apparent relationship between the two variables; changes in one variable do not predict changes in the other.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, often lying far away from the trend of the data.

Front

How can you identify an outlier in a scatterplot?

Back

An outlier can be identified as a point that is distant from the cluster of other points in the scatterplot.

Front

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

Back

A strong positive correlation appears as points that closely follow a straight line that slopes upwards from left to right.

Front

What does a weak correlation look like in a scatterplot?

Back

A weak correlation appears as points that are more spread out and do not follow a clear linear trend.

Front

What is the purpose of using scatterplots?

Back

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

Front

What are the axes in a scatterplot typically labeled with?

Back

The horizontal axis (x-axis) is usually labeled with the independent variable, while the vertical axis (y-axis) is labeled with the dependent variable.