Describing Correlation - Exit Ticket

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What is correlation?

Back

Correlation is a statistical measure that describes the extent to which two variables change together. A positive correlation means that as one variable increases, the other also increases, while a negative correlation means that as one variable increases, the other decreases.

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What does a scatter plot show?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data. It helps to visualize the relationship between the variables.

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What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot. It shows the general direction of the data points.

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

Back

In a positive correlation, the data points on the scatter plot slope upwards from left to right, indicating that as one variable increases, the other variable also increases.

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

Back

In a negative correlation, the data points on the scatter plot slope downwards from left to right, indicating that as one variable increases, the other variable decreases.

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What is no correlation?

Back

No correlation means there is no discernible relationship between the two variables, and the data points on the scatter plot do not show any clear pattern.

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How can you describe a weak correlation?

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A weak correlation means that the data points on the scatter plot are spread out and do not closely follow a straight line, indicating a less reliable relationship between the variables.

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What is the purpose of making predictions using a scatter plot?

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Making predictions using a scatter plot allows us to estimate the value of one variable based on the value of another variable, using the line of best fit.

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What does it mean if the line of best fit is steep?

Back

A steep line of best fit indicates a strong relationship between the two variables, meaning that a small change in one variable results in a large change in the other.

Front

What does it mean if the line of best fit is flat?

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A flat line of best fit indicates a weak relationship between the two variables, meaning that changes in one variable have little effect on the other.