Unit 5 Bivariate Date Mid-Unit Quiz

Which is a true statement about two numerical sets

of data that have negative association?

• As one variable increases, the other variable does

  not change.

• As one variable increases, the other variable

  increases.

• As one variable decreases, the other variable

  decreases.

• As one variable increases, the other variable

  decreases.

Write an equation in slope-intercept form for the trend line shown on the scatter plot.

Click on the picture and answer the question.

• a

• b

• c

• d

Click the picture and answer the question

• a

• b

• c

• d

What type of association would you expect

to see between the amount of fog in the sky

and the distance that a pilot can see?

• Positive association

• Negative association

• No association

• There is not enough information to tell.

Which of the scatter plots below shows a stronger association, and why?

• Scatter plot A; its slope is greater than B

• Scatter plot A; its points of data are closer together than B.

• Scatter plot B; its slope is positive

• Scatter plot B; it does not have any data points that are outliers.

The table below shows the average temperature during the day and the number of snow cones sold for several weeks. Use the data to construct a scatter plot.

Draw a tree diagram and solve.

Draw a tree diagram and solve.