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 in which the data points are moving.

Front

How do you determine the line of best fit?

Back

The line of best fit is determined by finding a line that minimizes the distance between itself and all the data points in the scatter plot.

Front

What does it mean if a scatter plot has no association?

Back

If a scatter plot has no association, it means that there is no predictable pattern or relationship between the two variables being plotted.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about one variable based on the value of another variable.

Front

What does a positive correlation in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that differ significantly from other observations and can affect the line of best fit and the overall interpretation of the data.

Front

How can you identify the line of best fit visually?

Back

You can identify the line of best fit visually by drawing a straight line that best represents the trend of the data points, ideally passing through the center of the data.

Front

What is the difference between a strong and weak correlation?

Back

A strong correlation means the data points are closely clustered around the line of best fit, while a weak correlation means the data points are more spread out.