Correlations

What type of correlation would you likely see with:

The amount of time students spent playing video games the night before a test compared to their respective grades on that test

• positive correlation

• negative correlation

• no correlation

What type of correlation would you likely see with:

The number of siblings a person has compared to the number of sodas they drink per day

• positive correlation

• negative correlation

• no correlation

Describe the strength and direction of the trend

• Moderate Negative Trend

• Strong Negative Trend

• Moderate Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Weak Negative Trend

• Strong Negative Trend

• Weak Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Moderate Negative Trend

• Strong Negative Trend

• Moderate Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Moderate Negative Trend

• Strong Negative Trend

• Moderate Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Weak Negative Trend

• Strong Negative Trend

• Weak Positive Trend

• Strong Positive Trend

What letter do we use to represent correlation coefficient?

• c

• r

• p

• h

Which scatter plot diagram shows the strongest positive correlation?

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r = -0.3 is considered to have...

• moderate negative correlation

• weak negative correlation

• no correlation

• strong negative correlation