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TranceAddict Forums > Local Scene Info / Discussion / EDM Event Listings > Canada > Canada - Toronto & Southern Ont. > WHO LIKES MATH? (Help needed, please)
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Minhaj
Your Moms Box



Registered: Feb 2004
Location: Toronto, You ******!

quote:
Originally posted by Irishaddict

nice sig

Old Post Sep-26-2005 21:31 
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DJ_Elyot
Havarti > Gouda



Registered: Aug 2002
Location: Kitchener, Ontario, Canada

I love math too... but I'm not into stats at all. But if anyone has some really nice geometry or functional equation problems, lemme know and I'll tear them up!


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Old Post Sep-27-2005 04:39  Canada
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Irishaddict
professional



Registered: Mar 2005
Location: St. Catharines

All you DJs are teh smrt.


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You told me to look much farther. You told me to walk much more. You told me that music matters.

Old Post Sep-27-2005 05:16  Ireland
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harcourt
Listening to the sounds



Registered: Mar 2001
Location: Toronto

quote:
Originally posted by DJ_Science
I hope this makes sense...

> 1. A normal distribution has a mean of 80 and a standard deviation
> of 14. Determine the value above which 80 percent of the values will > occur.

You need a table for this one. Its about 68.3. Basically you want to look at z&sigma for which a one tailed test gives 20 percent outside. They key to this is a one tailed test. then &mu - z&sigma is the value above which 80% will fall.


> d) What is the probability that 8 and 10 bottles are defectives?

at the Prob for 8 and 10 only, P = 0.08158677208886

> e) What is the probability that there are exactly 8 defectives?

0.10602553736479 same as above, but only the n = 8 term counts

> f) What is the probability that there are no defectives?

0.00592052922033 n = 0 term only


Shit, you beat me to it, looks like the problem is solved, maybe next time.

Old Post Sep-27-2005 05:21 
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angelgirl
CUPCAKE FOR YOU!



Registered: Aug 2003
Location: danger zone


"It was my understanding that there would be no math".

I love my fellow nerdy engineers.


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Old Post Sep-27-2005 15:12  Canada
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DJ_Science
Only 25 Characters?!



Registered: Nov 2003
Location: Dresden, Germany

^^^^ LMFAO

Seriously, that was awesome.


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Old Post Sep-27-2005 17:03  Canada
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TranceAddict Forums > Local Scene Info / Discussion / EDM Event Listings > Canada > Canada - Toronto & Southern Ont. > WHO LIKES MATH? (Help needed, please)
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