Scatterplot Predictions

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional plane.

Front

What does a trend line represent in a scatterplot?

Back

A trend line represents the general direction or pattern of the data points in a scatterplot, indicating the relationship between the variables.

Front

How do you interpret the slope of a trend line?

Back

The slope of a trend line indicates the rate of change between the two variables. A positive slope means that as one variable increases, the other also increases, while a negative slope means that as one variable increases, the other decreases.

Front

What does a positive correlation mean in a scatterplot?

Back

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

Front

What does a negative correlation mean in a scatterplot?

Back

A negative correlation 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 scatterplot, minimizing the distance between the line and all the data points.

Front

How can you use a scatterplot to make predictions?

Back

You can use a scatterplot to make predictions by extending the trend line to estimate the value of one variable based on the value of another.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far from the trend line and can significantly affect the slope and position of the line of best fit.

Front

What does it mean if the trend line is steep?

Back

A steep trend line indicates a strong relationship between the two variables, meaning that a small change in one variable results in a large change in the other.

Front

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

Back