Answer:
I have already answered this question
Answer:
2.57
Explanation:
Given the data:
X : 17, 17, 16, 17, 23, 22, 21
Mean absolute deviation (MAD) :
Σ|x - xbar| ÷ n
xbar = Σx/ n
n = 7
Σx = (17 + 17 + 16 + 17 + 23 + 22 + 21) = 8
xbar = 133/7 = 19
|x - xbar| :
|17 - 19|= 2
|17 - 19| = 2
|16 - 19| = 3
|17 - 19| = 2
|23 - 19| = 4
|22 - 19| = 3
|21 - 19| = 2
Therefore,
MAD = (2+2+3+2+4+3+2) / 7
MAD = 18 / 7
MAD = 2.57
THE AMAZING THING ABOUT BOOKS is how they have lives of their own. Writers think they know their
business when they sit down to compose a new work, and I suppose they do, right up to the moment
when the last piece of punctuation gets planted on the final sentence. More often than not, that
punctuation is a period. It should be a question mark, though, because what occurs from then on is
anybody’s guess.
The placebo effect, its basically when your mind tricks you into thinking something. The answer would be (C) hope it helps
