F
Fan_of_EP
Rising Star
Bronze Level
I initially put this question to the administrator, and they answered back a few minutes ago recommending I post it in the forum... so here goes :
My friends and I have been struggling with calculating the odds in
various cardgame situations. I managed to find a person with a PHD
in Statistics, but his answers/solutions did not hold up to testing,
and he won't help anymore... so I'm asking you for help. We have
several examples, but I'll stick with one to start with, and maybe ask
the 2nd question on a follow-up email... assuming we get this 1st
question solved.
Imagine you have a deck of 52 cards, face down on the table. The
odds of randomly pulling a spade on a single draw from the deck is 25%
(13 spades, 52 cards, easy). What if I pull out four random cards
from the deck. What are the odds that there is at least one spade
among them ? Same problem, but if I pull seven random cards from the
deck of 52, what are the odds that there is at least one spade among
the seven ? I need to see the math... the method used to derive the
odds of finding a spade in those cards.
I hope to hear back from you with good clear examples of how to
calculate it !
My friends and I have been struggling with calculating the odds in
various cardgame situations. I managed to find a person with a PHD
in Statistics, but his answers/solutions did not hold up to testing,
and he won't help anymore... so I'm asking you for help. We have
several examples, but I'll stick with one to start with, and maybe ask
the 2nd question on a follow-up email... assuming we get this 1st
question solved.
Imagine you have a deck of 52 cards, face down on the table. The
odds of randomly pulling a spade on a single draw from the deck is 25%
(13 spades, 52 cards, easy). What if I pull out four random cards
from the deck. What are the odds that there is at least one spade
among them ? Same problem, but if I pull seven random cards from the
deck of 52, what are the odds that there is at least one spade among
the seven ? I need to see the math... the method used to derive the
odds of finding a spade in those cards.
I hope to hear back from you with good clear examples of how to
calculate it !