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Kruka [31]
3 years ago
5

What is the mean absolute deviation (MAD) of the data set?

Mathematics
2 answers:
iogann1982 [59]3 years ago
6 0
Your answer will be 4.4
Lelechka [254]3 years ago
3 0
Mean: 2+5+6+12+15=40÷5=8

Ignore all minus signs
2-8=6
5-8=3
6-8=2
12-8=4
15-8=7

7+4+2+3+6=22÷5=4.4
The mean absolute deviation is 4.4
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Find an equation for the perpendicular bisect or of the line segment whose end points are (-2,-4) and (8,2)
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Answer:

, you must find the midpoint of the segment, the formula for which is

(

x

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x

2

2

,

y

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(

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)

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Next, since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula

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y

1

x

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−

x

1

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Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of

5

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−

1

5

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(

−

5

,

3

)

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−

1

5

.

Solve for the unknown

b

in

y

=

m

x

+

b

.

3

=

−

1

5

(

−

5

)

+

b

⇒

3

=

1

+

b

⇒

2

=

b

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7 0
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