Answer:
2.8
Step-by-step explanation:
The given data set is;
6, 12, 10, 9, 8, 6, 2, 4, 8, 15
The mean of this set is;



The mean absolute deviation is given by





Answer:
x = 55 + 60
= 115
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Not it doesn’t form a right angle because if you add it all together it makes it 54
I’m not really sure try the third one if not then sorry
The answer to this question would be 3d-2=31 and d=11