Scatter Plots and Data 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 it mean if a scatter plot shows a positive association?

Back

A positive association means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if a scatter plot shows a negative association?

Back

A negative association means that as one variable increases, the other variable tends to decrease.

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 trend of the data.

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 between two points on the line.

Front

What does a linear relationship in a scatter plot indicate?

Back

A linear relationship indicates that the data points can be approximated by a straight line.

Front

What is the purpose of predicting values using a scatter plot?

Back

The purpose of predicting values using a scatter plot is to estimate the value of one variable based on the value of another variable.

Front

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

Back

No association means that there is no discernible pattern or relationship between the two variables.

Front

How can you identify a non-linear relationship in a scatter plot?

Back

A non-linear relationship can be identified if the data points do not form a straight line and instead follow a curve.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.