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Unread 30-12-2013, 19:05
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Re: Statistics Quiz#1

Quote:
Originally Posted by bduddy View Post
Some web site, I can't remember. Trying another one gets me:

P(B(2000,1/3)<672) = .589957
P(B(100,.589957)>59) = .4616

No?
Still no joy.

As in your first post, the second computation is correct, but the first is off a bit.

I suspect the web sites you are using implement algorithms which are not accurate for larger numbers.

But hey, you understood how to solve the problem. Reps to you!


PS:

I ran the numbers in Python, Octave, Scilab, and Maxima and they all agreed with each other out to ~12 sigfigs.

If anyone reading has access to Matlab and/or R, could you please post the result for:

p1 = binocdf(671,2000,1/3)


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