alleryWhy is median income often a better summary than mean income?
AIt needs no sorting at all
BIt is always the top value
CExtreme values do not skew it
DIt uses every single value
Answer & Solution
Correct answer: C. Extreme values do not skew it
1. A few very rich people raise the mean a lot.
2. The median depends on the middle of the ordered data.
3. So it stays close to what a typical person earns.
The median is not the biggest value, it does need ordering, and using every value is a trait of the mean.
_Source: Wikipedia, Median, lead section_
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