Scatterplots

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 a positive relationship in a scatterplot indicate?

Back

A positive relationship indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative relationship in a scatterplot indicate?

Back

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

Front

What does it mean if there is no relationship in a scatterplot?

Back

No relationship means that changes in one variable do not affect the other variable.

Front

How can you predict values using a scatterplot?

Back

You can predict values by observing the trend of the data points and estimating the value of one variable based on the value of the other.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually represent data and identify potential relationships or correlations between two variables.

Front

What is the x-axis in a scatterplot?

Back

The x-axis is the horizontal axis that typically represents the independent variable.

Front

What is the y-axis in a scatterplot?

Back

The y-axis is the vertical axis that typically represents the dependent variable.

Front

How do you interpret the slope of a scatterplot?

Back

The slope indicates the direction and strength of the relationship between the two variables; a steeper slope indicates a stronger relationship.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that lies far away from the other points and may indicate an unusual observation.