Interpret Point on Scatterplots

Students in a science class investigated how the speed of changes with the air temperature outside. The data is shown in the scatterplot.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperate is 50 degrees C?

• 320 m/s

• 342m/s

• 358 m/s

• 550 m/s

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

Which statement is the most accurate interpretation of the data?

• As time went by, the temperature tended to decrease

• As time went by the temperature tended to increase

• There is no relationship between time and temperature.

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20

• y = -x + 12

• y = x + 20

• y = 2/3x + 15 

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

What type of correlation does this scatterplot represent?

• Strong negative correlation

• weak negative correlation

• strong positive correlation

• weak positive correlation

Tags

CCSS.8.SP.A.1

What can you conclude from the data? Check all that apply

• The number of times a song is played on the radio affects its number of downloads

• Increased radio play affects the download demand for all songs equally

• Even though there was very high radio play, the downloads of one song remained very low.

• In general, increased radio play does not affect the number of downloads

The data set in the table forms a cluster and does not include outliers. Which point, if added to the table, would be an outlier?>

Which points would be considered outliers? Check all that apply.

• (3, 9)

• (4,4)

• (6,5)

• (7,1)

• (11, 2)

Which best describes the data in the table?

• There are no outliers, but there is a cluster

• There is a cluster and outliers

• There are no clusters or outliers

• There are no clusters, but there are outliers

Describe the relationship between the variables.

• There is no relationship between the variables

• As the age increases, the height increases

• As the age increases, the height decreases

• As the height decreases, the age decreases

Use the scatterplot to determine if there is a relationship. If there is a relationship, explain it.

• Yes, there is a relationship. As time increases, texting speed increases

• Yes, there is a relationship. As time increases, texting speed decreases

• yes, there is a relationship. As texting speed increases, time increases.

• No, there is no relationship displayed.