Defining Relationships Between Two Variables

In a positive association, as the x-value increases the y-value (a)   .

If there is a negative association, as the x-value increases, the y-value (a)   .

As the x-value increases, the y-value sometimes increases and sometimes decreases. What type of association exists between the two variables?

• Positive Association

• No Association

• Negative Association

Provide a real-life example of two variables that have a positive association.

Which scenario(s) below represents a positive correlation?

• Studying more will result in a higher grade.

• As candy sales increase, the number of leaves on trees decreases.

• Taller people need longer pants.

• The more hours spent playing video games, the more performance at school decreases.

Draw a graph representing the miles increasing the more hours you drive.

Which correlation below could represent the relationship between a person's height and shoe size?

• Positive Correlation

• Negative Correlation

• No Correlation

Draw a graph to represent the likely correlation between school absences and grades.

As temperature increases, the rate of change that ice cream will melt,

• increases.

• decreases.

• doesn't change.

• increases and decreases.

A negative correlation is represented by two variables where one (a)   while the other variable increases.