Question

PLEASE I NEED HELP WITH 7 MORE PLEASE SOMEONE HELP

Answer 1

The mean absolute deviation is 16.

Explanation:

For a set of N values:

{x₁, x₂, ..., xₙ}

The mean value is:

`M = (x_1 + x_2 + ... + x_n)/(N)`

And the mean absolute deviation is:

`MAD = (|x_1 - M| + |x_2 - M| + ... + |x_n - M|)/(N)`

In this case, we have a set of 4 values, {-32, 9, 11, 12}

The first thing we need to do is find the mean, it will be equal to:

`M = (-32 + 9 + 11 + 12)/(4) = 0`

Then the mean absolute deviation will be:

`MAD = (|-32 - 0| + |9 - 0| + |11 - 0| + |12 - 0 |)/(4) = (32 + 9 + 11 + 12)/(4) = 16`

The mean absolute deviation is 16.