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

Positive association is when points in a scatterplot travel _____.

• Up and right
• Down and right
• Horizontally
• Vertically

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

What is the type of association?

• Negative 
• no association
• positive 

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

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

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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

What is the type of correlation?

• Negative 
• no correlation
• positive 

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

What percentage of the days that it rained, did they forecast no rain?

• About 20%
• About 18%
• About 14%
• About 12%

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

What would be the correlation between study time and test grades?

• positive
• negative
• none
• cannot be determined

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

Which example shows CORRELATION?

• I put water in the freezer and now I have ice.
• The alarm clock went off and I woke up.
• Temperature and the amount of people at the beach.

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

Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?

• There is a negative relationship between height and weight

• There is a positive relationship between height and weight

• There is a constant relationship between height and weight

• There is no relationship between height and weight

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

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

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

CCSS.Math.Content.8.SP.A.2