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3 years ago

In the data set below, what is the mean absolute deviation? 76, 67, 82, 25, 54, 15, 24

Mathematics

2 answers:

ella [17]3 years ago

8 0

57 42 26 79 78 74 46 07 94 25 12

alina1380 [7]3 years ago

4 0

Answer:

23.714285714286

Step-by-step

The mean absolute deviation of a set of data is the average distance between each data value and the mean.

1. Find the mean.

2. Find the distance between each data value and the mean. That is, find the absolute value of the difference between each data value and the mean.

3. Find the average of those differences.

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DochEvi [55]

Answer:

An octagon has eight interior angles.

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Since an octagon has 8 sides, we have:

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Step-by-step explanation:

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I need help with this pls

antoniya [11.8K]

I'll explain it simply for you

1st question
Of course you know phythagoras theorm
You even wrote it up there
It states that the sum of the square of the two sides of an equilateral triangle is equal to the square of the hypotenuse
${a}^{2} + {b}^{2} = {c}^{2}$
Where C is the hypotenuse
*NOTE* :
HYPOTENUSE is the greatest side in a triangle!!
And that's where your mistake is!
So you should take the greatest side as C
So in Q3. 7, 24 and 26 are the given numbers
You'll make the smaller two numbers a and b and the greatest number C
Using the Formula you'll solve the left side first which is
${a}^{2} + {b}^{2}$
Then the right side which is
${c}^{2}$

And if both are equal then it is a right triangle otherwise it isn't!
Let
a=7
b=24
c=26

a^2 + b^2
7^2 + 24^2
49 + 576 = 625
GREAT, Now the right side

26^2 = 676
Since they aren't equal it isn't a right angled triangle...

Then let
a=7.5
b=10
c=12.5

7.5^2 + 10^2
= 56.25 + 100
= 156.25

12.5^2 = 156.25

They are EQUAL
Therefore it is a right triangle too

Hopefully I helped

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Answer: hi im mongraal

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