8.5D: 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

How can you interpret the trend in a scatterplot?

Back

The trend in a scatterplot indicates the direction of the relationship between the variables: positive (upward), negative (downward), or no correlation.

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 there is no discernible relationship between the two variables; the data points are scattered randomly.

Front

How can you estimate a value using a scatterplot?

Back

You can estimate a value by locating the corresponding point on the scatterplot and observing the trend line or pattern.

Front

What is the purpose of creating a scatterplot?

Back

The purpose of creating a scatterplot is to visually represent data to identify relationships, trends, and patterns between two variables.

Front

What is the independent variable in a scatterplot?

Back

The independent variable is the variable that is manipulated or changed, typically plotted on the x-axis.

Front

What is the dependent variable in a scatterplot?

Back

The dependent variable is the variable that is measured or observed, typically plotted on the y-axis.

Front

How do outliers affect a scatterplot?

Back

Outliers can skew the interpretation of the data, affecting the perceived strength and direction of the correlation.