Scatterplots and Trend

The scatterplot shows the average traffic volume and average vehicle speed on a certain freeway for 50 days in 1999.

Which statement best describes the relationship between average traffic volume and average vehicle speed shown on the scatter plot?

• As traffic volume increases, vehicle speed increases at first, then decreases.

• As traffic volume increases, vehicle speed decreases at first, then increases.

• As traffic volume increases, vehicle speed decreases.

• As traffic volume increases, vehicle speed increases.

Tags

CCSS.HSF.IF.B.4

Mr. Thomas wanted to know if the amount of class time that he gave students to study affected their test scores. The scatterplot shows the results. What kind of relationship between class study time and test scores is shown on the scatter plot?

• No correlation

• Positive then negative correlation

• Positive correlation

• Negative correlation

A group of friends recorded the time it took to ride their bikes around the park. The scatterplot shows their results with the line of best fit.

Using the line of best fit, which is closer to the number of minutes it would take to complete 9 laps?

• 4

• 5

• 6

• 7

Tags

CCSS.8.EE.B.5

Oren plants a new vegetable garden each year for 14 years. The scatterplot shows the relationship between the number of seeds he plants and the number of plants that grow. Which number best represents the slope of the line of best fit through the data?

• -10

• -1/10

• 1/10

• 10

Tags

CCSS.8.EE.B.5

Sammy is selling his comic book collection on the internet. The scatterplot shows how many comic books he has left at the end of each day. Using the trend line, after how many days should Sammy predict to have 10 comic books left?

• 8

• 0

• 9

• 2

Based on the scatter plot, which statement best describes the trend?

• As the daily temperature increases, the number of beach visitors increases.

• as the daily temperature decreases, the number of beach visitors increases.

• As the daily temperature increases, there is no change in the number of beach visitors

• As the daily temperature increases, the number of beach visitors decreases

Which scatter plot could have a trend line whose equation is y hat= 3x + 10?

• A

• B

• C

• D

Tags

CCSS.HSF.LE.B.5

Sammy is selling his comic book collection on the internet. The scatterplot shows how many comic books he has left at the end of each day. Using the trend line, how many comic books should Sammy have left after 6 days?

• 15

• 10

• 30

• 8

The scatterplot shows the temp, in degrees, outside a house every hour for 10 hours.

Estimate the temp after 13 hours based off the trendline.

• 57.5

• 50

• 10

• 13

• 61.5

Which scatter plot could have a trend line whose equation is y = 3x + 10?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5