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mean vs average

mean vs average
Wed, 14 May 2008 19:13:04 GMT
Anyone care to enlighten me on the difference between these?
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Re: mean vs average
Wed, 14 May 2008 19:22:07 GMT
On Wed, 14 May 2008 19:13:04 +0000, Stevo wrote:

> Anyone care to enlighten me on the difference between these?

They're the same thing.  Median, though, that's different.

-- 
Joe
"Those of you who think you know everything are annoying to those of us who
do."
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Re: mean vs average
Wed, 14 May 2008 19:27:56 GMT
Stevo wrote:
> Anyone care to enlighten me on the difference between these?
> 
If you take the last cookie because you know I've already had quite 
enough of them today, that's average.  If you take the last cookie when 
you know I'm trying to go down to the staff room, but I'm on the phone 
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Re: mean vs average
Wed, 14 May 2008 19:27:58 GMT
Stevo wrote:
> Anyone care to enlighten me on the difference between these?
> 

Mean is what most people mean (!!) when they say "average".  There are

actually three different types of average.  Mean is where you add all 
the values and divide by the number of samples; median is the value at 
which half the samples are above and half are below; mode is... 
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Re: mean vs average
Wed, 14 May 2008 19:30:29 GMT
On Wed, 14 May 2008 19:27:58 +0000, Doug Black wrote:

> mode is... something I
> always have to look up.

The mode is simply the value(s) which appear(s) with the most frequency in
a list.  Then there's the midrange, which is where you take the highest
value added to the lowest value and then divide by two.  Or there's just
the range which is the lowest value subtracted from the highest value.

Yes, I just took my stats final on Monday night.  We'll see how quickly
this stuff disappears from my brain.

-- 
Joe
"Those of you who think you know everything are annoying to those of us who
do."
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