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 axis.

Front

What does the line of best fit represent in a scatterplot?

Back

The line of best fit represents the trend of the data points in a scatterplot, helping to predict values based on the observed data.

Front

How do you determine the line of best fit?

Back

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

Front

What is the purpose of making predictions using a scatterplot?

Back

The purpose is to estimate the value of one variable based on the value of another variable, using the trend shown in the scatterplot.

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 does no correlation mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not predict changes in the other.

Front

How can you use a scatterplot to make predictions?

Back

You can use the line of best fit to estimate the value of one variable based on the known value of the other variable.

Front

What is an example of a situation where a scatterplot might be used?

Back

A scatterplot might be used to analyze the relationship between hours studied and exam scores.

Front

What is the significance of outliers in a scatterplot?

Back

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