Scatter Plots and 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.

Front

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

Back

The line of best fit is a straight line that best represents the data on a scatter plot, indicating the general direction of the relationship between the variables.

Front

What does a positive relationship in a scatter plot indicate?

Back

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

Front

What does a negative relationship in a scatter plot indicate?

Back

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

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, often lying far away from the line of best fit.

Front

How can you identify an outlier in a scatter plot?

Back

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

Front

What does it mean if there is no relationship between two variables in a scatter plot?

Back

If there is no relationship, the data points do not show any consistent pattern or trend, indicating that changes in one variable do not affect the other.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to summarize the relationship between the variables and make predictions based on the data.

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How do you determine if a line is a good estimate of best fit?

Back

A good estimate of best fit minimizes the distance between the line and all data points, capturing the overall trend of the data.

Front

What is the first step in creating a scatter plot?

Back

The first step is to collect and organize the data for the two variables you want to compare.