Scatter Plots (Make Up Assignment)

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 grid.

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 association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What does 'no association' mean in the context of a scatter plot?

Back

No association means that there is no discernible relationship between the two variables; changes in one variable do not affect the other.

Front

How can you estimate a value using a scatter plot?

Back

You can estimate a value by locating the corresponding point on the scatter plot and using the line of best fit to predict the value.

Front

What is the purpose of using a scatter plot in statistics?

Back

Scatter plots are used to visually represent data and identify potential relationships or trends between two variables.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the other points and can significantly affect the line of best fit and the overall interpretation of the data.

Front

How do you determine the slope of the line of best fit?

Back

The slope of the line of best fit is determined by the change in the y-values divided by the change in the x-values between two points on the line.

Front

What is the formula for calculating the slope of a line?

Back

The formula for slope (m) is m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.