Mean = ∑x/n
Calculate the mean with all the scores, then calculate the mean without the 50.
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.
3 answers
The mean increases by 2.
the mean increased by 2