The following data shows the weight, in pounds, of 6 bags: 6, 4, 8, 7, 8, 9 What is the value of the mean absolute deviation of the weight of the bags, and what does it represent about the weight of a bag?
1.8 pounds; on average, weight of a bag varies 1.8 pounds from the mean of 7 pounds
1.3 pounds; on average, weight of a bag varies 1.3 pounds from the mean of 7 pounds