Outliers and Scatter Plots

How much did the charity receive in 2010?

• $120

• $120,000

• $130,000

• $150,000

Identify any clusters.

• Cluster at x = 14

• Cluster at x = 18

• Cluster at x = 24

• There aren't any noteworthy clusters in this graph.

What are the two variables being compared in this scatter plot?

• Yogurt

• Temperature

• Sales

Answer explanation

To find the variables, look on the x-axis and the y-axis.

Temperature is x and sales is y!

Are there any outliers?

• Yes

• No

Answer explanation

There are no outliers because all data points follow a similar increasing pattern. Higher temperature is related to higher sales.

What kind of association does the scatter plot show?

• Positive

• Negative

• No association

What kind of association does the scatter plot show?

• Positive

• Negative

• No association

Does the scatter plot show a relationship between temperature and sales?

• Yes, it shows a positive relationship.

• Yes, it shows a negative relationship.

• No, it shows no relationship.

Answer explanation

The line of best fit increases as you go to the right and has a positive slope. As x increases, y also increases.

This means that there is a POSITIVE relationship between the x and y.

What are the variables being compared in the scatter plot?

• Questions Missed

• Test

• Time Studying

What kind of relationship does the scatter plot show between time studying and numbers of questions missed?

• Positive

• Negative

• No relationship

Which equation written in slope-intercept form represents the trend line shown on the scatter plot below?