Hey Everyone

Not really sure how I would evaluate these:

10P4

_

P(A) when P(A) = 10/11

and

10C2

Thought i'd shoot them out there and see if anyone could guide me in the right direction.

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- Dec 12th 2008, 03:16 PMBlakeRobertsonMDEvaluate the Expression
Hey Everyone

Not really sure how I would evaluate these:

10P4

_

P(A) when P(A) = 10/11

and

10C2

Thought i'd shoot them out there and see if anyone could guide me in the right direction. - Dec 12th 2008, 03:33 PMPlato
This posting is almost impossible to read (decode).

Here is my take on it.

$\displaystyle _{10} P_4 = \left( {10} \right)\left( 9 \right)\left( 8 \right)\left( 7 \right) = \frac{{10!}}{{\left( {10 - 4} \right)!}}$.

While $\displaystyle _{10} C_2 = \frac{{10!}}{{2!\left( {10 - 2} \right)!}} = \frac{{10 \cdot 9}}{{2 \cdot 1}}$

I must say that I doubt this is your problem.