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maperalia
 
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Default Linear Trendline

Excel has created a linear trendline with its equations from the following
points:
X Y
1 4
3 12
6 15

the equations a
y = 2.1053x + 3.3158
R2 = 0.8681

I wonder if you can tell me how excel create this linear trendline from the
points shown.

Thanks in advance.
Maperalia

 
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