Re: A Purpose For Frt Car Distribution Studies


Rich <SUVCWORR@...>
 


-Does- average always mean the same thing? I learned (correctly, I
hope) that "average" could be one of three things; mean, median or
mode. Usually when folks - those unencumbered by formal education -
say "average" they actually mean "arithmetic mean."

Gene Green
OitwTtoEP
Average amd median are the same thing. total events/number of
observations eg. you observe 100 trains and those trains have 273 ATSF
cars in them. The average number of ATSF cars in a train is 2.73

Mean is that value where 50% of the observations are above or below it

Mode it the value that occurs most frequently.

eg. you observe 10 trains with the following number of PRR cars

3, 0, 3, 1l, 0, 0, 1, 8, 1, 13 total number of cars = 40 average =
4.0 cars per train mean = 2 mode = 0

Rich orr

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