Question

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

Answer 1

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.

Answer 2

Answer:

the mean is 4.2

Step-by-step explanation: