--- In [email protected], "Mike Bennett" 
<[EMAIL PROTECTED]> wrote:
>
> --- In [email protected], "Stefan Pochmann"
> <[EMAIL PROTECTED]> wrote:
> >
> > --- In [email protected], "Mike Bennett" 
> > <[EMAIL PROTECTED]> wrote:
> > > 
> > > OE, PC, OC, PE.  1/8 + 1/6 + 1/27 + 1/12 = 89/216 (~41%)
> > > 
> > > And if that's wrong, I'd like to blame my 4th grade teacher. ;)
> > 
> > For 4x4 reducing it to 3x3, you have those two parity problems. 
Each 
> > has 50% chance of skipping. Does that mean you have 50%+50%=100% 
> > chance of skipping one of them? Btw, cool that you learn 
probability 
> > in 4th grade already! Too bad your teacher screwed it :-)
> > 
> > Cheers!
> > Stefan
> 
> No.  I learned adding fractions using common denominators.  And I
> realize there is some overlap because some cases will have two or 
more
> skips in them, but I was unsure how to factor that in.  Would you
> please explain how?  That would be very helpful. I'm trying to work
> out some probabilities like that for an idea I've had about the Roux
> step 4.
> 
> -Mike

No, I won't just explain it, that's not my style of teaching :-)

Instead, let me ask you questions: What is the real probability to 
skip at least one of those two parity problems for the 4x4? Why is it 
not 100% like I get for adding 50%+50%? What's the correct way to 
compute it? Then apply this knowledge to your 4-step LL.

Cheers!
Stefan







 
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