wrx average mpg

Ed,

In statistics "mean" means average. Whether that average is actually cruel or not depends a lot on the values used to calculate it.

- Greg Reed

Hey Ed, what is an "AVE calculation"? Thanks.

Steve

Actually median is the midpoint between max and min. Mean is synonymous with average.

-rick-

Excerpted from

This definition matches the definition in Bookshelf 2000 word for word.

My bound paper dictionary* lists these two definitions among many others:

"The middle point between two extremes"

and also

"A number that represents a set of numbers in any of several ways determined by a rule involving all members of the set: average"

Two of the three dictionaries I consulted don't even bother to mention the definition you imply, and the one that does mention it is the oldest of the three. This and the fact that I wasn't even aware of that meaning (pun intended) until looking it up leads me to suspect that it's on its way to becoming archaic. Combine all this with the fact that the average of the stated "min" and "max" numbers doesn't match the stated "mean" value, and it seems likely to me that the OP's use of "mean" was, in fact, the average of all the fuel economy values.

- Greg Reed

Hey Greg, do you live in Utah by any chance? You just described 90% of the drivers here!!

Henry

opportunity

We get a similar deal here in Utah if we also take a driver's safety class with all the other "destination-oriented" drivers.

Henry

Uh, no ... the median is the number where half of the mileages are better and half are worse.

And it doesn't make any sense to add up MPG numbers and then divide by the number of samples. Yes, mathematically you can do that and get a number, but it's not a useful number. Just add up all the miles, and add up all the gallons, and divide one total by the other.

-- Bruce

Ah, you're absolutely right, sorry for my error.

OK, but that number would be extremely close to the mean given (as the number of gallons per tank is consistent). Showing the extent of variation adds information by bounding the effects of seasonal variations from temperature and gas formulation changes and a range of traffic congestion conditions.

-rick-

I live in northern Michigan. But I'm pretty sure I described 90% of the drivers everywhere except Germany.

- Greg Reed

I have been averaging about 22 mpg . 99% of my driving is on the Interstate at 70 mph.

BlueSTi "Scary-Fast"

Three years in FRG taught me they are impatient, but skilled drivers...as opposed to our typically impatient, *unskilled* drivers ;-)

Steve