8.5D: Scatterplots

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What is a scatterplot?

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A scatterplot is a type of graph that displays values for typically two variables for a set of data. Each point on the graph represents an observation.

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CCSS.8.SP.A.1

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How do you interpret the trend in a scatterplot?

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The trend in a scatterplot indicates the general direction in which the data points are moving. A positive trend means that as one variable increases, the other variable also increases, while a negative trend means that as one variable increases, the other decreases.

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What does it mean if points on a scatterplot are closely clustered together?

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If points on a scatterplot are closely clustered together, it indicates a strong correlation between the two variables.

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CCSS.HSF-LE.A.1B

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What is correlation in the context of scatterplots?

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Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or zero.

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CCSS.HSS.ID.B.5

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What is the purpose of using a scatterplot?

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The purpose of using a scatterplot is to visually represent the relationship between two quantitative variables and to identify patterns, trends, or correlations.

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CCSS.8.SP.A.1

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What does it indicate if a scatterplot shows no clear pattern?

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If a scatterplot shows no clear pattern, it suggests that there is little to no correlation between the two variables.

Tags

CCSS.HSF-LE.A.1B

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How can you estimate a value using a scatterplot?

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You can estimate a value by locating the corresponding point on the scatterplot for a given input value and reading the output value from the graph.

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What is the x-axis typically used for in a scatterplot?

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The x-axis is typically used to represent the independent variable, which is the variable that is manipulated or changed.

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What is the y-axis typically used for in a scatterplot?

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The y-axis is typically used to represent the dependent variable, which is the variable that is measured or observed.

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How do you determine the balance remaining on a loan from a scatterplot?

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You can determine the balance remaining on a loan by finding the point on the scatterplot that corresponds to the number of payments made and reading the balance from the y-axis.