What is the absolute deviation of the data set
2, 6, 8, 12, 12 i need ! giving out brainliest

3 1/3

Step-by-step explanation:

First find the mean which is (2+6+8+12+12)/5=8 then find the distance from the mean and all the numbers in the data set.

For example 2 is 6 away from 8 and so on

Remember it's called the mean absolute deviation so it has to be the absolute value of the distances.

Distances: 6, 2, 0, 4, 4,

Then do 6+2+0+4+4/5 because even though 0 doesn't add anything, it is still a value in the distances. You get 3 1/3

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form