Scatter Plots

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.

Front

What do the points on a scatter plot represent?

Back

The points on a scatter plot represent individual data points, with each point's position determined by the values of the two variables being compared.

Front

How can you identify a positive correlation in a scatter plot?

Back

A positive correlation is identified when the points on the scatter plot tend to rise from left to right, indicating that as one variable increases, the other variable also increases.

Front

What does a negative correlation look like on a scatter plot?

Back

A negative correlation is indicated when the points on the scatter plot tend to fall from left to right, showing that as one variable increases, the other variable decreases.

Front

What does it mean if the points on a scatter plot are widely spread out?

Back

If the points are widely spread out, it indicates a weak correlation between the two variables, meaning that changes in one variable do not consistently predict changes in the other.

Front

What is the purpose of a trend line in a scatter plot?

Back

A trend line is used to summarize the relationship between the variables by showing the general direction of the data points, helping to visualize the correlation.

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What is an outlier in a scatter plot?

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An outlier is a data point that is significantly different from the other points in the scatter plot, which can indicate an anomaly or error in the data.

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How can scatter plots be used in real life?

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Scatter plots can be used in various fields such as science, business, and social studies to analyze relationships between variables, such as height vs. weight or sales vs. advertising spend.

Front

What is the x-axis in a scatter plot?

Back

The x-axis is the horizontal axis in a scatter plot, typically representing the independent variable.

Front

What is the y-axis in a scatter plot?

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The y-axis is the vertical axis in a scatter plot, typically representing the dependent variable.