Comparing Scatter Plots

JoBeth draws a scatter plot that shows as the outside temperature increases, sales at her lemonade stand increase. Which best describes the scatter plot?

• The points show that as x-values increase, y-values increase.

• The points show that as x-values increase, y-values decrease.

• The points show that as x-values decrease, y-values stay the same.

• The points show that as x-values decrease, y-values increase.

Which of the following best describes a scatter plot that shows no relationship between the x-values and the y-values?

• As x-values increase, the points are higher on the graph.

• As x-values decrease, the points are higher on the graph.

• The points are scattered around the graph.

• The points form a horizontal line.

Which statement best describes the relationship between time shopping online and the number of stores visited?

• As the number of hours increases, the number of stores decreases.

• As the number of hours increases, the number of stores increases.

• The number of hours and the number of stores are about the same.

• As the number of hours decreases, the number of stores increases.

How much time did the person who visited 3 stores spend shopping online?

• 2 Hours

• 10 Hours

• 4 Hours

• 3 Hours

Mr. Reynosa plans to shop online for 4 hours for two days in a row. What is a reasonable prediction of how many stores he will visit?

• 10

• 8

• 12

• 22

Molly collected data about the number of hours students studied and their scores on a test. The results are shown in the scatter plot. Which statement about the data is true?

• As study hours increase, test scores decrease.

• As study hours increase, test scores increase.

• As study hours increase, test scores stay the same.

• As study hours decrease, test scores increase.

Which is a reasonable prediction of a test score for a student who studied for 1/2 hour?

• 80

• 100

• 50

• 5

Which relationship could be represented by this scatter plot?

• As the number of muffins in a box increases, the price increases.

• As the speed of a car increases, the distance the car travels increases.

• As the population of a city increases, the number of schools in the

  city increases.

• As the number of daylight hours increases, the number of night hours decreases.

As the area of a garden increases, what happens to the number of plants in a garden?

• The number of plants decreases.

• The number of plants stays the same

• The number of plants increases faster.

• The number of plants increases.

What type of association does this graph have?

• positive 
• negative
• none
• all of the above