anonymous
  • anonymous
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
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
I got 7 pounds
anonymous
  • anonymous
To find the average, add up all the numbers and divide them from one another. 7 pounds is the average
anonymous
  • anonymous
i got 42 how do i divide it from one another?

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anonymous
  • anonymous
anonymous
  • anonymous
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.
anonymous
  • anonymous
To find the mean deviation, you have to find the distance of each number to the value or 7.
anonymous
  • anonymous
of*
anonymous
  • anonymous
i got 7 i know that 42 divided by 6 = 7
anonymous
  • anonymous
Yes, and the problem is looking for the mean deviation. Find the distance from all the numbers to 7.
anonymous
  • anonymous
how do i do that?
anonymous
  • anonymous
anonymous
  • anonymous
Subtract the mean from each value, ignore minus signs if there are in the solution. So, 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.
anonymous
  • anonymous
1, 3, -1, 0, -1, -2
anonymous
  • anonymous
so 1.3?
anonymous
  • anonymous
Ignore the negative signs, and then add them and divide by 7 to get the deviation.
anonymous
  • anonymous
Divide by 6*
anonymous
  • anonymous
and yes, 1.3
anonymous
  • anonymous
can you help with one more?
anonymous
  • anonymous
Sure!

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