Let's find the mean of all the values first. 6.3+6.4+6.5+6.6+6.8+6.8+7.5= 46.9 Let's divide by the number of values. 46.9÷7= 6.7 Now let's find the distance that each number is away from 6.7 and find the mean of those numbers. 0.4+0.3+0.2+0.1+0.1+0.1+0.8= .2857 ≈ 0.3 So, the absolute deviation is 0.3.