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2 years ago

15

What is the mean absolute deviation 3,5,8,1,4

2 answers:

kifflom [539]2 years ago

7 0

Answer:

Mean absolute deviation: 1.84.

Step-by-step explanation:

How do you find the mean absolute deviation for a bunch of numbers?

Calculate the average (a.k.a. mean) of the numbers.
Calculate the absolute difference (just discard any negative "-" sign in front of the difference) between each number and the mean.
The mean absolute deviation is the average of all those absolute differences.

What's the mean of those numbers?

(3 + 5 + 8 + 1 + 4) / 5 = 4.2.

Absolute difference:

3 - 4.2 = -1.2. Drop the negative sign to get 1.2.
5 - 4.2 = 0.8.
8 - 4.2 = 3.8.
1 - 4.2 = -3.2. Drop the negative sign to get 3.2.
4 - 4.2 = - 0.2. Drop the negative sign to get 0.2.

What's the average of those absolute differences?

(1.2 + 0.8 + 3.8 + 3.2 + 0.2) / 5 = 1.84. That's the mean absolute deviation of those five numbers.

erastovalidia [21]2 years ago

6 0

Answer:

the mean is 4.2

Step-by-step explanation:

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3 years ago

Steffie makes a scale drawing for a crate with the demensions 15 inches long by 12 inches wide. Her scale factor is 1:3. Brian m

rodikova [14]

Answer:

Dimensions → (5 inches × 4 inches)

Step-by-step explanation:

Scale factor used for the drawing by Steffie = $\frac{1}{3}$

Since, scale factor = $\frac{\text{Dimension of the drawing}}{\text{Actual dimension}}$

For Steffie,

Actual length of the crate = $\frac{\text{Dimension of the drawing}}{\text{Scale factor}}$

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