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Statistics - probability of a value

 
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Grandis
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PostPosted: Wed Apr 28, 2010 11:42 pm    Post subject: Statistics - probability of a value Reply with quote

Hi.

I have a set of numbers. Let say that I have 20 numbers. Lets say that average is 15. How can I find two numbers so that there is 90% probability that any numbers between is complicant with the other 20 numbers?

Eg. If population that counts 20 individuals have a weight of 15 kg in average. How to tell if there is 90 percent probability that any individual has a weight between 13 and 17 kg? (13 and 17 is just random numbers here, it could likely be something else)
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jrkrideau
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PostPosted: Fri Apr 30, 2010 5:36 am    Post subject: Re: Statistics - probability of a value Reply with quote

Grandis wrote:
Hi.

I have a set of numbers. Let say that I have 20 numbers. Lets say that average is 15. How can I find two numbers so that there is 90% probability that any numbers between is complicant with the other 20 numbers?

Eg. If population that counts 20 individuals have a weight of 15 kg in average. How to tell if there is 90 percent probability that any individual has a weight between 13 and 17 kg? (13 and 17 is just random numbers here, it could likely be something else)


http://en.wikipedia.org/wiki/Confidence_interval
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