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Author Topic: STATISTICS DOUBT!!! PLZ REPLY ASAP!!!  (Read 4733 times)

Offline I Jimmy I

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Re: STATISTICS DOUBT!!! PLZ REPLY ASAP!!!
« Reply #30 on: May 25, 2011, 02:50:21 pm »
Ermm guys! I got another doubt.....

Question 6(i) of MJ 2010, 2nd varient.

Plz reply ASAP
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Offline Ghost Of Highbury

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Re: STATISTICS DOUBT!!! PLZ REPLY ASAP!!!
« Reply #31 on: May 25, 2011, 07:17:50 pm »
x = 0,1,2

0 -> all ducks -> 5/7*4/6*3/5*2/4 = 1/7


1-> any place out of the 4 can be a geese - > 4C1 * 5/7*4/6*3/5*2/4= 4/7

2-> 4C2*5/7*4/6*2/5*1/4 = 2/7
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