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3 years ago

What is the mean absolute deviation of the following data set 3, 13, 11, 5

Mathematics

1 answer:

charle [14.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

Add up your data. 3+13+11+5=32
Divide the sum by the number of data you have. In your case you would divide 32/4/
This will give you 8, which is your mean. Now, subtract 8 from each value and put the difference to its absolute value.
Now, add up each of these values (5+5+3+3=16), then divide by 4. This will give you an answer of 4.

Hope this helps! Have a great day :)

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lesya [120]

Answer:

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Step-by-step explanation:

Direct variation is in the form:

$y=kx$

Where k is the constant of variation.

Inverse variation is in the form:

$\displaystyle y=\frac{k}{x}$

In the given problem, the frequency of a vibrating guitar string varies inversely as its length. In other words, using f for frequency and l for length:

$\displaystyle f=\frac{k}{\ell}$

We can solve for the constant of variation. We know that the frequency f is 4.3 when the length is 0.65 meters long. Thus:

$\displaystyle 4.3=\frac{k}{0.65}$

Solve for k:

$k=4.3(0.65)=2.795$

So, our equation becomes:

$\displaystyle f=\frac{2.795}{\ell}$

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What is the mean absolute deviation of the following data set 3, 13, 11, 5​

What is the mean absolute deviation of the following data set 3, 13, 11, 5