Bunuel wrote:
Mochad wrote:
Bunuel wrote:
Again order does matter. P(oddsum)=P(EEO)+P(EOE)+P(OEE)+P(OOO)=1/8+1/8+1/8+1/8=1/2.
Excuse me, but I didn't understand why order does matter? At the end we are looking for the sum of the selectedballs and not for the order of theselection , so whether it is 2+2+1 or 1+2+2 or 2+2+1 they are all the same! They all equal 4 which is one possibleoutcome and not3
Consider below two scenarios:
First=Even, Second=Even, Third=Odd;
First=Even, Second=Odd, Third=Even;
Are these scenarios the same? No. That's why the ordermatters.
Yes, these 2 scenarios are same here, bcoz both will give an odd sum. So order does not matter here. Isn't it ??
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Statistics : Posted by AdityaRathore • on 13 Feb 2011, 11:46 • Replies 30 • Views 150737