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anonymous

  • one year ago

The number of pets owned by eight classmates is shown below: 1, 3, 2, 2, 1, 3, 3, 1 Part A: What is the mean of the data? Show your work. (4 points) Part B: Use your answer from Part A to calculate the mean absolute deviation for the data. Show your work. (6 points)

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  1. anonymous
    • one year ago
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    I just need help with b

  2. anonymous
    • one year ago
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    I got 2 for the absolute deviation is that correct?

  3. anonymous
    • one year ago
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    what up

  4. anonymous
    • one year ago
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    it is 2

  5. anonymous
    • one year ago
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    so you was correct

  6. anonymous
    • one year ago
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    can you show me how you know?

  7. welshfella
    • one year ago
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    what did you get for the mean?

  8. anonymous
    • one year ago
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    first you add all of the numbers which was 16 and then divide by how many people there was which was 8 so 16 divided by 8 is 2

  9. welshfella
    • one year ago
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    thats the mean 2

  10. anonymous
    • one year ago
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    for the part a i got 2

  11. welshfella
    • one year ago
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    to get the mean absolute deviation you add up the absolute differences of each value from the mean . Add these values then divide by 8

  12. anonymous
    • one year ago
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    yes

  13. welshfella
    • one year ago
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    1 2-1 = 1 3 3 -2 = 1 2 2 -2 = 0 2 2 - 2 = 0 and so on

  14. anonymous
    • one year ago
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    i did this to find the absolute deviation 1-2+3-2+2-2+2-2+1-2+3-2+3-2+1-2

  15. anonymous
    • one year ago
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    so all that above 8

  16. anonymous
    • one year ago
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    sure

  17. anonymous
    • one year ago
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    so 6/8

  18. anonymous
    • one year ago
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    yes

  19. anonymous
    • one year ago
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    |dw:1439408182902:dw|

  20. welshfella
    • one year ago
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    Hmm to be honest i'm not sure I'll have to check

  21. anonymous
    • one year ago
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    same im confused im going to go over it again and you tell me how you it so we can compare

  22. anonymous
    • one year ago
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    *do

  23. welshfella
    • one year ago
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    right - you take ABSOLUTE values so for instance first values is 1: 1 - 2 = -1 The absolute value of -1 is 1. so there are no negatives

  24. welshfella
    • one year ago
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    so 6/8 is not correct

  25. anonymous
    • one year ago
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    alright

  26. anonymous
    • one year ago
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    i was doing something else what

  27. welshfella
    • one year ago
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    oh hold on it does work out to 6/8 it is 1+ 1 +0+ 0 + 1+ 1+1 + 1 = 6 so 6/8 or 3/4

  28. anonymous
    • one year ago
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    Yeah

  29. anonymous
    • one year ago
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    i see

  30. anonymous
    • one year ago
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    ok

  31. welshfella
    • one year ago
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    what you wrote 1-2+3-2+2-2+2-2+1-2+3-2+3-2+1-2 = 0

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