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Ann's actual sale is 450-x,Cal's 190+x
after corrected, Ann still higher than Cal, so Ann is the median.
450-x=330, so x=120
maybe I can express in another way:
Ann's actual sale is 450-x,Cal's 190+x,
suppose that either Ann or Cal can be the median,
if Ann is the median, than we get the previous answer;
however, if Cal is median(330), we will have 190+x=330, x=140, then Ann(450-140=310) will less than Cal(330), that is incorrect.
This can explain why Cal can not be the medain and Ann must.
now: Ed > Ann > Bob > 33000 > Cal > Dot
Because
1.Ed, Bob and Dot's numbers don't change
2.33000 is a new number so it's either Ann's actual sale or Cal's
Therefore
In order for Ann's actual sale to be higher than Cal's actual sale, the new order should be:
Ed > Bob > Ann-x (median) > Cal + x > Dot
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