>I understand the MIN & MAX functions, but what is in the above sample of data, you added 6,8. I need to know what is a statistically correct way to reject these low numbers. How far off of the standard deviation is ok? Basically I want to get a reasonable average. These numbers skew things way off.

you can use standard deviation if you have normal distribution (I am not sure of the term in english) of the data (ie the data basically fits the gauss bell)
then you can calculate the mean and standard deviation
and you can set the limits for your query as
x between mean-n*deviation, mean+n*deviation)

n=1 about 33 percent of the data
n=2 about 67 percent
n=3 97 percent
n=3.5 99.something
if my memory serves me right :)

Arnon