Qualification > Math

Urgent: Maths CIE Stats

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$!$RatJumper$!$:
i have no idea if this is correct.. :) i would like someone who is sure about their answer to comment on if i did something wrong :) and i think the threshold should vary between 36-39 out of 50

lana:
I predict between 35-38 i think everyone found it harder than any other year .. but I hope we all get an A  ;)

Deadly_king:
Am sorry...................i've done so badly in the last question that I can't confirm any answers in it. :(

Yeah it was kinda hard for everyone. So i expect the threshold to decrease upto 30-35.

I really hope to get an A in that paper though it's not very likely due to the number of mistakes. :(

mousa:

--- Quote from: $!$RatJumper$!$ on November 04, 2010, 06:09:08 pm ---As far as i remember, the info they gave was:
If there are 10 men and 9 women. What are the ways of choosing 6 people if there are atleast 4 men and 1 woman.

iii) If one particular man or one particular women are on the committee but not both.

Answer I got:

(9C3*8C1*13C1) + (9C3*8C2) + (9C4*8C1) + (8C1*9C4) + (8C0*9C5) = 13230

--- End quote ---

I realy dont remeber wt I got, but i am confident of my working out, By the way, for the 1st part regarding how many combinations for the committe having at least 4m and at least 1 w??
it meant that only possible combinatins are 5m and 1 w OR 4m and 2 w

so my answer was 9828 ways is that correct??

mousa:
hey guyss how about Questions 5 and 6 any of you remember their answers???
which bitts you found tricky???

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