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anonymous

  • one year ago

When the outliers are removed, how does the mean change? dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1 on 81, 2 on 82, 1 on 83 The mean decreases by 3. The mean increases by 2. The mean increases by 3. There are no outliers.

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  1. sammixboo
    • one year ago
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    First, let's find the mean of the whole data set. Do you know how to find the mean?

  2. anonymous
    • one year ago
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    yes, the mean of the whole thing is 68.8

  3. anonymous
    • one year ago
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    @sammixboo

  4. Loser66
    • one year ago
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    the mean of the whole thing is 77 after removing the outliers, the mean is 79.625 hence, it increases 3

  5. anonymous
    • one year ago
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    ok, thanks but how did you get 77?

  6. Loser66
    • one year ago
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    + them up, divides by 10

  7. anonymous
    • one year ago
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    i got 688

  8. Loser66
    • one year ago
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    ok, let do it together 50 <-- outlier +76 +78 +79 +79 +80 +81 +82 +82 +83 <--- outlier ---------- 770

  9. Loser66
    • one year ago
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    Take off outliers, it means 770 - 50 -83= 637 divided by 8, \(637\div 8=79.625\)

  10. anonymous
    • one year ago
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    oh, ok, thank you

  11. Loser66
    • one year ago
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    np

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