CCSS.Math.Content.8.SP.A.1

In a scatterplot, an outlier...

• ...is something we didn't learn 8th grade
• ...is a puppet with a long nose named Pinocchio
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a really naughty point who doesn't tell the truth when outside

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CCSS.Math.Content.8.SP.A.1

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation
• Negative correlation
• No correlation

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CCSS.Math.Content.8.SP.A.1

What is the correlation?

• Negative correlation
• No correlation
• Positive correlation
• All of the above

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CCSS.Math.Content.8.SP.A.1

A perfect negative correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

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CCSS.Math.Content.8.SP.A.1

Which statement best describes the relationship shown in this scatter plot?

• Students with a bigger shoe size earn a higher math score
• Students with a smaller show size earn a higher math score
• A student's shoe size has no effect on their math score
• A student with a shoe size of 8 will always earn a score of 80%

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CCSS.Math.Content.8.SP.A.1

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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CCSS.Math.Content.8.SP.A.1

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

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CCSS.Math.Content.8.SP.A.1

Which with is the line of best fit?

• A) Black

• B) Orange

• C) Red

• D) Blue

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CCSS.Math.Content.8.SP.A.1

The scatterplot shows the number of hours that 12 people spent learning to type on a keyboard and each person's average typing speed.

Based on the scatterplot, what is the best prediction of a person's average typing speed in words per minute (wpm) if the person has spent 70 hours learning to type?

• 100 wpm

• 55 wpm

• 85 wpm

• 70 wpm

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CCSS.Math.Content.8.SP.A.1

The manager of a restaurant recorded how many people were in different groups of customers and how much those groups spent on food and beverages. The scatterplot below shows the data she recorded.

Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?

• $135

• $119

• $105

• $147

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CCSS.Math.Content.8.SP.A.1