Understanding Scatter Plots

This video tutorial covers scatter plots, which are graphical representations of two variables. It explains how to identify different types of correlations: positive, negative, and none. The video includes guided practice on identifying correlations in scatter plots and plotting data to determine correlation. Additional resources are available for further learning.

What is the primary purpose of a scatter plot?

• To list data points in a table

• To calculate the average of data points

• To show the relationship between two variables

• To display the frequency of data points

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Which type of correlation occurs when both variables increase together?

• Inverse correlation

• Positive correlation

• No correlation

• Negative correlation

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What does a negative correlation indicate about the movement of variables?

• One variable increases while the other decreases

• Both variables increase

• Both variables decrease

• Variables do not change

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In a scatter plot with no correlation, how are the data points typically arranged?

• Forming a perfect circle

• Randomly scattered

• Clustered in one area

• In a straight line

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What direction does a positive correlation typically head in a scatter plot?

• Upward

• Horizontal

• Downward

• Circular

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In the guided practice, what correlation is identified when the scatter plot points move upward to the right?

• Positive correlation

• Inverse correlation

• No correlation

• Negative correlation

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When plotting data, what is the correlation if the X values increase and the Y values also increase?

• No correlation

• Positive correlation

• Inverse correlation

• Negative correlation

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In the example where X is 1 and Y is 9, what is the next point plotted?

• X is 2, Y is 10

• X is 5, Y is 14

• X is 3, Y is 12

• X is 1, Y is 10

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What is the correlation if the plotted points do not form any discernible pattern?

• Positive correlation

• Negative correlation

• No correlation

• Inverse correlation

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