ScatterPlots/Line of Best Fit

Front

What is a scatter plot?

Back

A scatter plot 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 scatter plot 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 scatter plot 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 is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, showing the general direction of the data.

Tags

CCSS.8.EE.B.5

Front

How do you determine the line of best fit?

Back

The line of best fit is determined by minimizing the distance between the line and all the data points, often using the least squares method.

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What does it mean if a line does not go through the middle of the data set?

Back

If a line does not go through the middle of the data set, it may not accurately represent the trend of the data, indicating it is not a line of best fit.

Tags

CCSS.8.EE.B.5

Front

What is an example of a negative relationship in a scatter plot?

Back

An example of a negative relationship is the relationship between the age of a car and its value, where older cars tend to have lower values.

Tags

CCSS.HSF-LE.A.1B

Front

What is an example of a positive relationship in a scatter plot?

Back

An example of a positive relationship is the relationship between the number of hours studied and test scores, where more study time generally leads to higher scores.

Tags

CCSS.HSF-LE.A.1B

Front

What variables could be represented in a scatter plot showing distance traveled vs. gas remaining?

Back

In this scatter plot, the x-axis could represent distance traveled and the y-axis could represent gas remaining in the tank.

Tags

CCSS.8.EE.B.5

Front

What does it mean if a scatter plot shows no correlation?

Back

If a scatter plot shows no correlation, it means there is no apparent relationship between the two variables being measured.

Tags

CCSS.HSS.ID.B.5