Posted by DAN on Monday, April 9, 2012 at 4:39pm.
How do you find the average deviation from these numbers:
290 , 270 , 250 , 300 , & 290.
I think their mean is 280

MATHEMATICS  Steve, Monday, April 9, 2012 at 4:55pm
average deviation would be the average of the deviations from the mean.
If the mean is 280, then the deviations are
10 10 30 20 10
figure the average of those numbers.

MATHEMATICS  DAN, Monday, April 9, 2012 at 5:21pm
how did u get those numbers?

MATHEMATICS  ExplanationCentral, Monday, April 9, 2012 at 5:47pm
The deviation is the difference between a value and the mean.
So the deviations are:
(290280) (270280) (250280) (300280) (290280)
This gives you: 10 10 30 20 10
The average is the sum of the numbers divided by the number of numbers (5).
so that would be 0/5 = 0.
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