Question

What is the mean absolute deviation of the following numbers 18, 28, 24, 25, 15?

A) 4.4
B) 5.2
C) 6.8
D) 7.6

Answer 1

To find the mean absolute deviation of a set of numbers, follow these steps: Find the mean, subtract the mean from each number, take the absolute value of each difference, add up all the absolute values, and divide the sum by the total number of numbers. Correct option is A.

Step-by-step explanation:

To find the mean absolute deviation of a set of numbers, follow these steps:

1. Find the mean of the numbers by adding them all up and dividing by the total number of numbers.
2. Subtract the mean from each number in the set.
3. Take the absolute value of each of these differences.
4. Add up all the absolute values.
5. Divide the sum by the total number of numbers.

In this case, the mean absolute deviation of the numbers 18, 28, 24, 25, 15 is 4.4, so the correct answer is A) 4.4.