An equation was created for the line of best fit from actual enrollment data. It was used to predict the dance studio enrollment values shown in the table below:
Enrollment Month
January February March April May June
Actual 120 140 150 140 150 130
Predicted 80 150 110 150 110 150
Residual 40 −10 40 −10 40 −20
Analyze the data. Determine whether the equation that produced the predicted values represents a good line of best fit.
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OpenStudy (cameron2000):
@jigglypuff314
OpenStudy (cameron2000):
@KendrickLamar2014
OpenStudy (marcelie):
@Directrix
OpenStudy (cameron2000):
@jigglypuff314
OpenStudy (cameron2000):
@Michele_Laino
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OpenStudy (cameron2000):
@KendrickLamar2014
OpenStudy (cameron2000):
@vhtran
OpenStudy (vhtran):
Sorry, I'm not very good with line of best fit :C
OpenStudy (cameron2000):
@Er.Mohd.AMIR
OpenStudy (cameron2000):
its ok
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OpenStudy (cameron2000):
I need help badly
OpenStudy (cameron2000):
@Atsie
Atsie (atsie):
Well, I would understand maybe how to help on this if I knew what good line of best fit meant. :P
OpenStudy (cameron2000):
@Atsie A straight line drawn through the center of a group of data points plotted on a scatter plot. Scatter plots depict the results of gathering data on two variables; the line of best fit shows whether these two variables appear to be correlated.
Atsie (atsie):
@mathmale
@Wendy.Ivette11714
These math pro's may be able to help you better than I can :)
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OpenStudy (wendy.ivette11714):
@cameron2000 Take a look at the residuals. Are they close to zero or not?