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anonymous

  • one year ago

A data set is shown. 48, 43, 42, 49, 50, 41 What is the mean absolute deviation of this data set? 45.5 9 3.5 3

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  1. jim_thompson5910
    • one year ago
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    first off, what is the mean of this data set?

  2. anonymous
    • one year ago
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    15.25

  3. jim_thompson5910
    • one year ago
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    no you made an error somewhere

  4. anonymous
    • one year ago
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    45.5

  5. jim_thompson5910
    • one year ago
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    yep that's the mean but not the mean absolute deviation

  6. jim_thompson5910
    • one year ago
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    what you do next is subtract the mean from each data value then apply absolute value bars like this... |48 - 45.5| = 2.5 |43 - 45.5| = 2.5 |42 - 45.5| = 3.5 |49 - 45.5| = 3.5 |50 - 45.5| = 4.5 |41 - 45.5| = 4.5

  7. anonymous
    • one year ago
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    then add them together?

  8. jim_thompson5910
    • one year ago
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    correct, then you average those results (add them up, then divide by 6)

  9. anonymous
    • one year ago
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    ahh thank you!

  10. jim_thompson5910
    • one year ago
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    yw

  11. anonymous
    • one year ago
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    so 3.5?

  12. jim_thompson5910
    • one year ago
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    yep 2.5 + 2.5 + 3.5 + 3.5 + 4.5 + 4.5 = 21 21/6 = 3.5

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