Scatterplots

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What is a scatterplot?

Back

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

Tags

CCSS.8.SP.A.1

Front

What does a positive correlation in a scatterplot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation in a scatterplot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean in a scatterplot?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

How can you estimate values from a scatterplot?

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You can estimate values by finding the corresponding point on the graph that aligns with the given variable.

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What is the purpose of using scatterplots in data analysis?

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Scatterplots are used to visually represent data and identify potential relationships or trends between two variables.

Tags

CCSS.8.SP.A.1

Front

What is the difference between weak and strong correlation?

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Weak correlation means the data points are spread out and do not closely follow a trend, while strong correlation means the data points closely follow a trend.

Tags

CCSS.HSS.ID.B.5

Front

How do you identify a positive correlation in a scatterplot?

Back

A positive correlation is identified when the data points slope upwards from left to right.

Tags

CCSS.HSS.ID.B.5

Front

How do you identify a negative correlation in a scatterplot?

Back

A negative correlation is identified when the data points slope downwards from left to right.

Tags

CCSS.HSS.ID.B.5

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that differ significantly from other observations and can affect the overall correlation.

Tags

CCSS.8.SP.A.1