scatterplots basics 1

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 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 it mean if a scatterplot shows no correlation?

Back

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

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is when the data points in a scatterplot can be approximated by a straight line.

Front

How can you identify a linear relationship in a scatterplot?

Back

You can identify a linear relationship by observing if the data points cluster around a straight line.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two variables and to identify trends, patterns, or correlations.

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

What is an outlier in a scatterplot?

Back

An outlier is a data point that lies significantly outside the general pattern of the data, which can affect the interpretation of the relationship.