Population Mean
المؤلف:
المرجع الالكتروني للمعلوماتيه
المصدر:
www.almerja.com
الجزء والصفحة:
...
22-2-2021
1741
Population Mean
The mean of a distribution with probability density function 
is the first raw moment 
, defined by
 |
(1)
|
where 
is the expectation value.
For a continuous distribution function, the population mean is given by
 |
(2)
|
where 
is the expectation value. Similarly, for a discrete distribution,
 |
(3)
|
The population mean of a distribution is implemented in the Wolfram Language as Mean[dist].
The sample mean is an unbiased estimator for the population mean.
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