Scatter Plots and Lines 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 a positive correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the overall trend of the data.

Front

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

Back

A linear relationship can be identified if the data points roughly form a straight line.

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of data points that are located close together in a certain area of the graph.

Front

What is a gap in a scatter plot?

Back

A gap is an area in a scatter plot where there are no data points.

Front

What does the slope of a line of best fit represent?

Back

The slope of a line of best fit represents the rate of change between the two variables.

Front

What is the y-intercept in the equation of a line?

Back

The y-intercept is the value of y when x is zero, indicating where the line crosses the y-axis.

Front

How do you determine the equation of a line of best fit?

Back

The equation of a line of best fit can be determined using statistical methods such as linear regression.