Scatterplot Review

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables. Each point on the graph represents an observation.

Front

What does a positive correlation in a scatterplot 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 scatterplot indicate?

Back

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

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that differs significantly from other observations in the dataset.

Front

How do you identify the line of best fit in a scatterplot?

Back

The line of best fit is a straight line that best represents the data on a scatterplot, minimizing the distance between the line and all data points.

Front

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

Back

Front

What does the slope of a line represent in a scatterplot?

Back

The slope of a line represents the rate of change between the two variables in the scatterplot.

Front

What does the y-intercept represent in a scatterplot?

Back

The y-intercept represents the value of the dependent variable when the independent variable is zero.

Front

What is the purpose of the line of best fit?

Back

The line of best fit is used to make predictions about the dependent variable based on the independent variable.

Front

What does 'no correlation' mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; the points do not show any trend.