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Lesechka [4]
2 years ago
11

Easiest way to solve this?

Mathematics
2 answers:
ale4655 [162]2 years ago
6 0

Answer:

add \: all \: and \: divide \: it \: by \: 4 \\  (4 + 6 + 6 + 2) \div 4 \\ 18 \div 4 \\   4.5

mezya [45]2 years ago
6 0

Answer:

Step-by-step explanation:

1. Finding the mean:

\overline{X}=\dfrac{4+6+6+2}{4} =\dfrac{18}{4} =\dfrac{9}{2}=4.5

2 Find the mean of the distance from data to the mean

MAD=\dfrac{|4-\dfrac{9}{2}|+|6-\dfrac{9}{2}|+|6-\dfrac{9}{2}|+|2-\dfrac{9}{2}| }{4} \\\\=\dfrac{|\dfrac{8-9}{2}|+|\dfrac{12-9}{2}|+|\dfrac{12-9}{2}|+|\dfrac{4-9}{2}| }{4} \\\\=\dfrac{|\dfrac{-1}{2}|+|\dfrac{3}{2}|+|\dfrac{3}{2}|+|\dfrac{-5}{2}| }{4} \\\\=\dfrac{\dfrac{1}{2}+\dfrac{3}{2}+\dfrac{3}{2}+\dfrac{5}{2} }{4} \\\\=\dfrac{\dfrac{18}{2}}{4} \\\\=\dfrac{9}{4}\\\\=2.25\\

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