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 in the data, allowing for predictions about one variable based on the other.

Front

How do you interpret the slope of the line of best fit?

Back

The slope indicates the rate of change between the two variables; a positive slope means that as one variable increases, the other also increases.

Front

What is the purpose of using a trend line in a scatterplot?

Back

A trend line helps to summarize the data and make predictions about future values.

Front

What does the x-axis typically represent in a scatterplot?

Back

The x-axis typically represents the independent variable, which is the variable that is manipulated or changed.

Front

What does the y-axis typically represent in a scatterplot?

Back

The y-axis typically represents the dependent variable, which is the variable that is measured or observed.

Front

How can you use a scatterplot to make predictions?

Back

You can use the line of best fit to estimate the value of the dependent variable for a given value of the independent variable.

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the strength and direction of the relationship between two variables, which can be positive, negative, or none.

Front

What does a positive correlation look like on a scatterplot?

Back

A positive correlation appears as an upward trend, where data points rise from left to right.

Front

What does a negative correlation look like on a scatterplot?

Back

A negative correlation appears as a downward trend, where data points fall from left to right.