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Published byCollin Streat Modified about 1 year ago

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MAKE PREDICTIONS FROM SCATTER PLOTS

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Scatter Plots show a positive trend if y tends to increase as x increases or if y tends to decrease as the x decreases. Scatter Plots show a negative trend if one value tends to increase and the other tends to decrease. A scatter plot shows no trend (correlation) if there is no obvious pattern. If there is a trend, positive or negative, we can use the line of best fit to make predictions. MAKE PREDICTIONS POSITIVE NEGATIVE NO CORRELATION

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Here is a scatter plot showing the relationship between students who took a History Test and a Math Test. Is there a relationship between the scores? Describe the relationship. HISTORY VS. MATH

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Since there is a positive correlation with the data, predict what a student who earned a 75% on their history test earned on their math test. What can I draw that will help me make that prediction? HISTORY VS. MATH

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The line of best fit will help you make a prediction as to what score the student would get on their math test if they earned a 75% on their history test. What score would he get on the math test? HISTORY VS. MATH About 77% 75% on History Test

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The following table shows the population between goldfish and star fish at different aquariums. POPULATION OF GOLDFISH & STAR FISH Goldfish Star Fish Is there a relationship in this data? What can we draw to see if there is a relationship? Draw a scatter plot

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Is there a relationship with this data? What kind of relationship is it? If I have a goldfish population of 15, how many star fish will there be? What can I draw to help me make that prediction? GOLDFISH & STAR FISH

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Draw a line of best fit. If I have a goldfish population of 15, how many star fish will there be? There would be about 26 star fish. GOLDFISH & STAR FISH

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