Scatter Plots, Clusters, and Outliers

Front

What is a scatter plot?

Back

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

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What is an outlier?

Back

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

Front

What are clusters in a scatter plot?

Back

Clusters are groups of data points that are close to each other in a scatter plot, indicating a concentration of values.

Front

How can you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that is noticeably distant from the other points in the plot.

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What does it mean if a scatter plot has no outliers?

Back

It means that all data points are within a similar range and there are no points that stand out significantly from the rest.

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What is the significance of the x-axis in a scatter plot?

Back

The x-axis typically represents one variable in the dataset, allowing for comparison with the variable on the y-axis.

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What is the significance of the y-axis in a scatter plot?

Back

The y-axis typically represents the second variable in the dataset, allowing for comparison with the variable on the x-axis.

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How do you interpret a scatter plot with a positive correlation?

Back

A scatter plot with a positive correlation shows that as one variable increases, the other variable also tends to increase.

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How do you interpret a scatter plot with a negative correlation?

Back

A scatter plot with a negative correlation shows that as one variable increases, the other variable tends to decrease.

Front

What does it indicate if a scatter plot has a gap?

Back

A gap in a scatter plot indicates a range of values where no data points exist, suggesting a lack of observations in that area.