8.5D: Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a type of graph that displays values for typically two variables for a set of data. Each point on the graph represents an observation.

Front

How do you interpret the trend in a scatterplot?

Back

The trend in a scatterplot indicates the general direction in which the data points are moving. A positive trend means that as one variable increases, the other variable also increases, while a negative trend means that as one variable increases, the other decreases.

Front

What does it mean if points on a scatterplot are closely clustered together?

Back

If points on a scatterplot are closely clustered together, it indicates a strong correlation between the two variables.

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or zero.

Front

What is the purpose of using a scatterplot?

Back

The purpose of using a scatterplot is to visually represent the relationship between two quantitative variables and to identify patterns, trends, or correlations.

Front

What does it indicate if a scatterplot shows no clear pattern?

Back

If a scatterplot shows no clear pattern, it suggests that there is little to no correlation between the two variables.

Front

How can you estimate a value using a scatterplot?

Back

You can estimate a value by locating the corresponding point on the scatterplot for a given input value and reading the output value from the graph.

Front

What is the x-axis typically used for in a scatterplot?

Back

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

Front

What is the y-axis typically used for in a scatterplot?

Back

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

Front

How do you determine the balance remaining on a loan from a scatterplot?

Back

You can determine the balance remaining on a loan by finding the point on the scatterplot that corresponds to the number of payments made and reading the balance from the y-axis.