Scatter Plots

Scatter plot are graphs that use points to display​ (a)   data.

• numerical
• bivariate
• association
• categorical

Hector surveyed 500 people and asked them how far they drive to work and what the last digit of their phone number is. He used the results to make a scatter plot.

What type of association should he expect to see in the scatter plot?

• Positive Association

• Negative Association

• No Association

Jules conducted a survey and asked 100 people how many years of education they have and what their annual income is. She used the results to make a scatter plot.

What type of association should she expect to see in the scatter plot?

• Positive Association

• Negative Association

• No Association

What does it mean when two variables have a positive association?

• When the variables move in opposites directions, one increases and the other decreases.

• When the first variables has no effect on the second variable

• When the variables move in the same direction. They both increase.

Label the type of association:

• Positive

• None

• Negative

Label they type of association:

• Positive

• Negative

• None

Label they type of association:

• Positive

• Negative

• None

Label they type of association:

• Positive

• Negative

• None

Which scatter plot(s) could be used to show the relationship between a person's age and a person's height?

• 3

• 4

• 5

• 6

Which scatter plot(s) could be used to show the relationship between a person's age and the number of syllables in a person's first and last name?

• 3

• 4

• 5

• 6