Scatter Plots Review

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 represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

What is an outlier in a scatter plot?

Back

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

Front

How do you determine the slope of a line in a scatter plot?

Back

The slope of a line in a scatter plot is determined by the change in the y-value divided by the change in the x-value (rise over run).

Front

What does a negative slope indicate in a scatter plot?

Back

A negative slope indicates that as one variable increases, the other variable decreases, showing an inverse relationship.

Front

What does a positive slope indicate in a scatter plot?

Back

A positive slope indicates that as one variable increases, the other variable also increases, showing a direct relationship.

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the strength and direction of a relationship between two variables, which can be positive, negative, or nonexistent.

Front

What is the formula for the line of best fit?

Back

The formula for the line of best fit is typically expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

A strong correlation in a scatter plot is identified by data points that closely cluster around the line of best fit.

Front

What does it mean if there is no correlation in a scatter plot?

Back

No correlation means that there is no discernible relationship between the two variables, and the data points are scattered randomly.