The median will consequently always provide a much more accurate reflection of the typical income earner in any top income group than any average or mean.

FORBES: More On The Certain Equality Of Reaganomics

That is because in any lower income group, with both an upper and lower bound to the incomes included, the average or mean income will always be much closer to the median.

FORBES: More On The Certain Equality Of Reaganomics

In that data, the average or mean income of the top 10% of households seems to increase much more from 1989 to 2004 than the average or mean income of the next highest 10%, or of any lower income group.

FORBES: More On The Certain Equality Of Reaganomics

The implication of the above is that any average or mean of incomes in the top 20% will always be much higher than the median of incomes in the top 20%, which is defined as the income level with half of those in this fifth above, and half below.

FORBES: More On The Certain Equality Of Reaganomics

The numbers used to quantify pollen levels vary between collecting stations, and don't mean much to the average consumer, so levels are usually described simply as low, moderate or high.

CNN: What's in a pollen count, anyway?