Antievolution.org :: Antievolution.org Discussion BoardThe Critic's Resource on Antievolution

 Antievolution.org Discussion Board > From the Panda's Thumb > After the Bar Closes... > The Bathroom Wall

 Pages: (656) < [1] 2 3 4 5 6 ... >
 Topic: The Bathroom Wall, A PT tradition < Next Oldest | Next Newest >
DiEb

Posts: 286
Joined: May 2008

 Quote (Robin @ Oct. 22 2012,02:02) Got a statistics problem for anyone feeling bored:(1+mi)*(1+mi+1)*(1+mi+2)*...(1+mn)=(1+X)^nSuppose each value of M has a standard deviation associated with it. What is the standard deviation of X? Is it a simpler calculation if the standard deviation of each M is the same?This is from my wife's friend. It's been over 25 years since I've done statistics so I'm rusty and trying to brush up. Any help would be appreciated.Oh...and the notation is the way it is because I've not figured out how to get series fonts to work.

Let me clarify:

1) You have  a number of random variables M_1 .... M_n and you form the product R= (1+M_1)(1+M_2)...(1+M_n). Those M_i are real valued, independent, and are following an identical distribution.

2) Are asking whether there is a random variable X such that the product R equals (1+X)^n ?

Obviously if n is even and those M are following the Gaussian law then such an X doesn't exist - the right hand side is always positive, while the probability for the left hand to be negative is positive :-)

 19679 replies since Jan. 17 2006,08:38 < Next Oldest | Next Newest >

 Pages: (656) < [1] 2 3 4 5 6 ... >

 Forum Jump -----------   >All About Antievolution   -----------------------    +- Antievolution, Politics, and the Law    +- Intelligent Design    +- Young-Earth Antievolution    +- Old-Earth Antievolution    +- Collaborations   >Specifically About Intelligent Design   -------------------------------------    +- Intelligent Design News    +- Not a Book to Be Tossed Aside Lightly...    +- Cabbages and Kings    +- The ID-files   >Evolutionary Biology   --------------------    +- News & Events   >From the Panda's Thumb   --------------------------    +- After the Bar Closes...   >The TalkOrigins Archive   -----------------------    +- Feedback

 Track this topic Email this topic Print this topic

[ Read the Board Rules ] | [Useful Links] | [Evolving Designs]