Qualification > Queries

How was your S1

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Dude22:
Same here

Like in the prob dist question with ducks

I was looking at it all wrong, trying to use binomial.
If I had used combinations I would have gotten like 4/5 marks more :(

Freaked12:

--- Quote from: Dude22 on May 27, 2010, 11:21:18 am ---Same here

Like in the prob dist question with ducks

I was looking at it all wrong, trying to use binomial.
If I had used combinations I would have gotten like 4/5 marks more :(

--- End quote ---

hmm..
for ducks
i got the probabily for 0 geese and 1 geese
but i couldnt find out for 2 geese
but then i remembered all prababilities should equal to 1.So i added both and minused it with 1 and voila.:D

Freaked12:
tree diagram was easy i think

anyways what did you write for exclusive.i fergot the shitty formula

immortal:

--- Quote from: BoyFromTheFuture on May 27, 2010, 12:36:56 am ---The problem was that I could have aced it.
QQ.

--- End quote ---
No point regretting..

Dude22:
I got probabilities=1 but they didn't = the proof in the next part, so I know they are wrong

The tree diagram was easy
They are not independent but they are mutually exclusive, you can prove it using the formula for independent prob and ME.

I also messed up the last parts of Q7

I'm worried about p3 now since the newest P3s are hard and I make many mistakes

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