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.

Front

What does a line of best fit represent in a scatter plot?

Back

A line of best fit is a straight line that best represents the data points in a scatter plot, indicating the overall trend of the data.

Front

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

Back

It means that there is no discernible relationship between the two variables being compared.

Front

How can you determine if a line of best fit is a good representation of the data?

Back

A line of best fit is a good representation if it closely follows the trend of the majority of the data points.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that is significantly different from the other points in the dataset, often lying far away from the trend.

Front

What does a positive slope in a line of best fit indicate?

Back

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

Front

What does a negative slope in a line of best fit indicate?

Back

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

Front

What is the purpose of drawing a line of best fit?

Back

The purpose is to summarize the relationship between the variables and make predictions based on the trend.

Front

What does it mean if most data points are below the line of best fit?

Back

It may indicate that the line of best fit is not a good representation of the data, as it does not capture the trend accurately.

Front

How can you identify a strong correlation in a scatter plot?

Back

A strong correlation is indicated by data points that are closely clustered around the line of best fit.