Unit 3 Flashcardizz Review: Investigating Data

Front

What is an outlier in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

How would you describe a positive linear association in a scatterplot?

Back

A positive linear association means that as one variable increases, the other variable also increases, and the points form a straight line.

Front

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

Back

It means that changes in one variable do not affect the other variable, and the points do not show any clear pattern.

Front

What is the equation used to determine a student's score based on days absent?

Back

The equation is t = 95 - 6a, where t is the test score and a is the number of days absent.

Front

If a student is absent for 7 days, what is their expected test score?

Back

The expected score is 53.

Front

What type of association is shown if the scatterplot points trend downward?

Back

The association is negative.

Front

What does a scatterplot show?

Back

A scatterplot shows the relationship between two quantitative variables.

Front

What is a positive association in a scatterplot?

Back

A positive association occurs when both variables increase together.

Front

What is a negative association in a scatterplot?

Back

A negative association occurs when one variable increases while the other decreases.

Front

What does it mean if a scatterplot has no clear pattern?

Back

It indicates that there is no correlation or relationship between the two variables.