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tangare [24]
2 years ago
11

Find the mean absolute deviation of the data below: 7,4,7,7,2,10,12,8,7,5

Mathematics
1 answer:
Virty [35]2 years ago
5 0

Answer:

1.9

Step by step answer

step1 finding the mean

(7+4+7+7+2+10+12+8+7+5)/10 = 6.9

step2 Difference between each data

Difference between 7 and 6.9 is 0.1

Difference between 4 and 6.9 is 2.9

Difference between 7 and 6.9 is 0.1

Difference between 7 and 6.9 is 0.1

Difference between 2 and 6.9 is 4.9

Difference between 10 and 6.9 is 3.1

Difference between 12 and 6.9 is 5.1

Difference between 8 and 6.9 is 1.1

Difference between 7 and 6.9 is 0.1

Difference between 5 and 6.9 is 1.9

step3 add all the Difference

0.1 + 2.9+0.1+0.1+4.9+3.1+5.1+1.1+1.9 = 19.4

step4 divde it by n

19.4/10 = 1.9

so the answer is 1.9

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y-y=m(x-x)

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*NOTE: another way to find m is by calculating it (y-y)/(x-x)

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Now we know all the variables that need to be known, we just need to rewrite the formula of the equation so the teacher can see.

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We don’t need to plug in x or y since it could have different values (since a straight line has MANY co-ordinates)

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Hope you understand this, feel free to ask me anything!

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