Qualification > Math

statistics

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KillaInstinc:
For The last ques..

Mean = 18.2

S.D = 14.2   

Rage2o9:

--- Quote from: sahrhp on May 28, 2009, 04:56:08 pm ---Q PnC

i  i dont remember

ii 5!x6!
iii   (4!x3!)x2

Q zoo trip

p(elephant)=0.25
P(camel)=0.25
P(tractor) =0.50

den dere was this tree

P(frightened)= (0.25x0.6)+(0.25x0.7)+(0.50x0.8)

P(camel, given not frightened)=(0.25x0.3)/(1-P(frightened))

--- End quote ---


Answer for the first questiojn was a number which had like lots of 3s in it..
333333000 (something like that, cant remember)

ocean:
hey...i did some really stupid mistakes in the last questi0n...the last two parts actually...i couldnt find the mean and s.d. any idea how much marks it may cost me? i had found (summision-fx) and and (summision fx^2) correctly i know, but had divided it by some other number than (summision f) :S

eye-candy:
i guess u will lose 2-3 marks in da 2nd last part
u will get all the marks in da last part if your method ws correct using the sd u got in the previous part
:)

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