Presentation is loading. Please wait.

Presentation is loading. Please wait.

MAKE PREDICTIONS FROM SCATTER PLOTS.  Scatter Plots show a positive trend if y tends to increase as x increases or if y tends to decrease as the x decreases.

Similar presentations


Presentation on theme: "MAKE PREDICTIONS FROM SCATTER PLOTS.  Scatter Plots show a positive trend if y tends to increase as x increases or if y tends to decrease as the x decreases."— Presentation transcript:

1 MAKE PREDICTIONS FROM SCATTER PLOTS

2  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

3  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

4  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

5  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

6  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

7  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

8  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


Download ppt "MAKE PREDICTIONS FROM SCATTER PLOTS.  Scatter Plots show a positive trend if y tends to increase as x increases or if y tends to decrease as the x decreases."

Similar presentations


Ads by Google