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Q: How many different samples of size 4 can be selected from a population of size 8?

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There are 25C7 different samples of seven from a pool of 25.25C7 = 25!/(7!(25-7)!) = 480 700 different samples of 7

Approximately 1.364*1060

A statistical estimate is an estimation of population based on one or many data samples of a group. There are two types of estimates: point and interval.

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Go here: http://www.raosoft.com/samplesize.html or http://www.surveysystem.com/sscalc.htm Raosoft is a little more robust...

Related questions

There are 324,632 possible samples.

278 256The number of 5 different item combinations from a pool of 34 different items isgiven by:34C5 = 34!/(5!29!) = 278 256

7*6*5/(3*2*1) = 35

Number of samples = 42C4 = 42*41*40*39/24 = 111930

There are 16,007,560,800 or just over 16 billion samples.

The answer depends on the population and is described by the sampling distribution of the mean.

There are 25C7 different samples of seven from a pool of 25.25C7 = 25!/(7!(25-7)!) = 480 700 different samples of 7

There are many different type of letters that can be written. Once you decide what kind of letter you need, you can do a web search to see many samples.

Approximately 1.364*1060

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There are many different websites that offer letterhead samples. Such websites include the PSPrint website, the Vistaprint website, and the ACFConsulting website.

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