Pregame: Illinois vs Nebraska, Tuesday, January 31st, 6:00pm CT, BTN

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#101      

grue2

G
grue2
Illini2010-11 said:
Looks like mathematical formulas were requested.

The mathematical definition of true mean (population mean):
μ = ( Σ Xi ) / N

Sample Mean:
x_bar = ( Σ xi ) / n
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Okay, I'll bite. What, beyond capitalization and the naming of mu vs. x_bar is the difference between the two?
 
#103      

Illini2010-11

I
Sugar Grove
Illini2010-11
grue2 said:
Okay, I'll bite. What, beyond capitalization and the naming of mu vs. x_bar is the difference between the two?
Click to expand...
The population mean represents the entire population "pie" (i.e. N which is population Total). Sample mean looks at a slice of the pie (n being total of the sample slice).
 
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