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
1.3 pounds; the weight of 50% of the bags is greater than 1.3 pounds
1.8 pounds; the weight of 50% of the bags is greater than 1.8 pounds
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I got 7 pounds
To find the average, add up all the numbers and divide them from one another. 7 pounds is the average
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Divide by the number of numbers, meaning divide 42 by how many bags are in the data set. 7 pounds is the average weight of the bags.
To find the mean deviation, you have to find the distance of each number to the value or 7.
i got 7 i know that 42 divided by 6 = 7
Yes, and the problem is looking for the mean deviation.
Find the distance from all the numbers to 7.
how do i do that?
Subtract the mean from each value, ignore minus signs if there are in the solution.
7 - 6
7 - 4
7 - 8
7 - 7
7 - 8
7 - 9
After you've received all the distances, add them all up and you'll receive the deviation.
1, 3, -1, 0, -1, -2
Ignore the negative signs, and then add them and divide by 7 to get the deviation.