## i don't know how to solve this I've done much harder -.-

Sequences, counting (including probability), logic and truth tables, algorithms, number theory, set theory, etc.
akuma
Posts: 2
Joined: Mon Mar 10, 2014 11:21 pm
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### i don't know how to solve this I've done much harder -.-

We take a uniformly random permutation of a standard deck of 52 cards, so
that each permutation has a probability of 1/52!. Define the following events:
A = \the top card is an Ace",
B = \the bottom card is the Ace of spades",
C = \the bottom card is the Queen of spades".
Determine
Pr(A | B);
and
Pr(A|C):
Last edited by akuma on Sat Mar 15, 2014 6:13 pm, edited 1 time in total.

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
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### Re: i don't know how to solve this I've done much harder -.-

We take a uniformly random permutation of a standard deck of 52 cards, so
that each permutation has a probability of 1=52!.
What is the meaning of "one equals fifty-two factorial"?
Define the following events:
A = \the top card is an Ace",
B = \the bottom card is the Ace of spades",
C = \the bottom card is the Queen of spades".
Determine
Pr(A j B);
and
Pr(A j C):
What is the meaning of the letter "J" between the "event" letters? I'm familiar with a "pipe" character, indicating "given" (such as "Pr(A|B)" which means "the probability of A, given B"), but not your notation. Thank you.

akuma
Posts: 2
Joined: Mon Mar 10, 2014 11:21 pm
Contact:

### Re: i don't know how to solve this I've done much harder -.-

Ya there were some word conversion issues i missed thank you its correctly written now