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Roman55 [17]
3 years ago
7

Plz help with number 3 if number 2 is wrong plz tell thx!

Mathematics
2 answers:
Olenka [21]3 years ago
5 0
Number 2 is correct. For number 3, the mean is 9 and the mean absolute deviation is 1.33.
Sveta_85 [38]3 years ago
3 0
Mean is the average and it is 9 
12 is 3 from it
9 is 0 from it
7 is 2 from it
11 is 2 from it 
10 is 1 from it
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Step-by-step explanation:

The distance formula used is:

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Putting values in the distance formula we get:

d=\sqrt{(3-0)^2+(-4+0)^2+(5-0)^2}\\d=\sqrt{(3)^2+(-4)^2+(5)^2}\\d=\sqrt{9+16+25}\\d=\sqrt{50}\\d=7

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