Scatterplots

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What is a scatterplot?

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

Tags

CCSS.8.SP.A.1

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What does a positive correlation in a scatterplot indicate?

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A positive correlation indicates that as one variable increases, the other variable also tends to increase.

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CCSS.HSS.ID.B.5

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What does a negative correlation in a scatterplot indicate?

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A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

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What does no correlation mean in a scatterplot?

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No correlation means there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

Tags

CCSS.HSS.ID.B.5

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How can you predict values using a scatterplot?

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You can predict values by finding the trend in the scatterplot and estimating the value based on the observed data points.

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What is a linear relationship in a scatterplot?

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A linear relationship is when the data points in a scatterplot form a straight line, indicating a consistent rate of change between the two variables.

Tags

CCSS.8.F.A.3

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What is the purpose of using scatterplots in data analysis?

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

Tags

CCSS.8.SP.A.1

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How do you identify outliers in a scatterplot?

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Outliers are points that fall far away from the general cluster of data points in a scatterplot, indicating they do not fit the overall trend.

Tags

CCSS.8.SP.A.1

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What is the x-axis in a scatterplot?

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The x-axis is the horizontal axis that typically represents the independent variable in a scatterplot.

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What is the y-axis in a scatterplot?

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The y-axis is the vertical axis that typically represents the dependent variable in a scatterplot.