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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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.

Mathematics
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First, let's find the mean of the whole data set. Do you know how to find the mean?
yes, the mean of the whole thing is 68.8

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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
ok, thanks but how did you get 77?
+ them up, divides by 10
i got 688
ok, let do it together 50 <-- outlier +76 +78 +79 +79 +80 +81 +82 +82 +83 <--- outlier ---------- 770
Take off outliers, it means 770 - 50 -83= 637 divided by 8, \(637\div 8=79.625\)
oh, ok, thank you
np

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