Help with an easy probability question

[KahunaHube]

Hey all,

I'm studying for my probability final, and for some reason i can't get the correct answer to this question:

An ordinary deck of 52 cards is shuffled. What is the probability that the top four cards have different denominations?

The answer should be .6761

Can anyone explain how to get this?


Thanks!
-Hubert

 

[thirtythree]

1 x (52-4)/51 x (52-8)/50 x (52-12)/49 = .6761104442

 

[KahunaHube]

sweet!

you the man.. man

 

[HonkeyDonk]

Originally posted by: KahunaHube
sweet!

you the man.. man

but do you understand it?

 

[wicktron]

Originally posted by: HonkeyDonk

Originally posted by: KahunaHube
sweet!

you the man.. man

but do you understand it?

I do!