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1 Correlation

Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 1: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Correlation 

Page 2: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 3: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 4: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Strong positive correlation will have r close to 1.

Strong negative correlation will have r close to ­1.

Weak positive correlation r is closer to 0.5  than to 0 or 1.

Weak negative correlation r is closer to ­0.5 than to 0 or ­1.

Page 5: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 6: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 7: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 8: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 9: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 10: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 11: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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4.

Page 12: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 13: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 14: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 15: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 16: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 17: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 18: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 19: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 20: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 21: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 22: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 23: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 24: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 25: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 26: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 27: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 28: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 29: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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Page 30: Correlation - Polk County School District Causation.pdfAndrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart. ... A correlation

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W­Up:

Andrea has a science project, and she recorded the height of her petunias growth in centimeters over time in a chart.  From this chart, she creates a scatter plot and then computes an equation, y = 2.3x + 5.  Explain what her slope and y­intercept mean.  Is her y­intercept relevant?