Scatter plots- Lines 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 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, indicating the trend of the data points.

Tags

CCSS.8.EE.B.5

Front

What does an outlier represent in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations, indicating a possible anomaly or variation.

Tags

CCSS.8.SP.A.1

Front

How do you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that is far away from the cluster of other data points.

Tags

CCSS.8.SP.A.1

Front

TRUE OR FALSE: A line of best fit must go through the origin.

Back

False. A line of best fit does not have to pass through the origin.

Tags

CCSS.8.EE.B.5

Front

TRUE OR FALSE: Data points above the trend line are generally higher than expected values.

Back

True. Data points above the trend line indicate higher values than predicted by the line.

Tags

CCSS.HSF.LE.B.5

Front

What is a positive association in a scatter plot?

Back

A positive association occurs when an increase in one variable corresponds to an increase in another variable.

Tags

CCSS.HSS.ID.B.5

Front

What is a negative association in a scatter plot?

Back

A negative association occurs when an increase in one variable corresponds to a decrease in another variable.

Tags

CCSS.HSS.ID.B.5

Front

What does 'no association' mean in a scatter plot?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Tags

CCSS.HSS.ID.B.5

Front

How can you determine the strength of a relationship in a scatter plot?

Back

The strength of a relationship can be determined by how closely the data points cluster around the line of best fit.

Tags

CCSS.HSF-LE.A.1B