2Make PredictionsScatter 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.POSITIVENO CORRELATIONNEGATIVE
3History Vs. MathHere 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.
4History Vs. MathSince 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?
5History Vs. Math75% on History TestThe 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?About 77%
6Population of Goldfish & Star fish The following table shows the population between goldfish and star fish at different aquariums.Goldfish13181920271622243212Star Fish302515281029Is there a relationship in this data?What can we draw to see if there is a relationship?Draw a scatter plot
7Goldfish & Star Fish 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?
8Goldfish & Star Fish 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.