Unit 6 Day 1 Practice

Front

What does a non-linear association in a graph indicate?

Back

A non-linear association indicates that the relationship between the variables does not follow a straight line; the change in one variable does not consistently predict the change in another.

Front

What is a positive relationship in a scatter plot?

Back

A positive relationship means that as one variable increases, the other variable also increases.

Front

What is a negative relationship in a scatter plot?

Back

A negative relationship means that as one variable increases, the other variable decreases.

Front

What does 'no association' mean in the context of a scatter plot?

Back

'No association' means that there is no discernible relationship between the two variables; changes in one variable do not affect the other.

Front

How can you identify a linear relationship in a scatter plot?

Back

A linear relationship can be identified by a pattern that forms a straight line, indicating a consistent rate of change between the variables.

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data, showing how much one variable is affected by another.

Front

What does it mean if a scatter plot is described as 'scattered'?

Back

A 'scattered' scatter plot indicates that the data points are widely spread out and do not show any clear pattern or relationship.

Front

What is the difference between linear and non-linear relationships?

Back

Linear relationships have a constant rate of change and can be represented by a straight line, while non-linear relationships have varying rates of change and cannot be represented by a straight line.

Front

What is the significance of the slope in a linear relationship?

Back

The slope indicates the rate of change between the two variables; a positive slope indicates a positive relationship, while a negative slope indicates a negative relationship.

Front

What does a scatter plot with no correlation look like?

Back

A scatter plot with no correlation shows data points that are randomly distributed with no discernible pattern or trend.