A deck of a newly created card game consists of 60 cards. In this deck, there are:
- 4 VB cards
- 4 HBL cards
- 4 DD cards
- 4 SP cards
- 4 CC cards
- 1 RH cards
- 4 FD cards
- 1 WC cards
- 14 LA cards
- Other misc cards
A player draws 7 cards. To win, the player needs to draw:
* 1 VB card, and
* 1 HBL card, and
* 1 DD or SP card, and
* 1 LA card, and
* 1 CC or SP or RH or FD card, and
* 1 SP or WC card
The remaining card(s) can be anything.
(a) What is the probability of winning if 7 cards are drawn?
(b) What is the probability of winning if 8 cards are drawn?
(c) What is the probability of winning if 9 cards are drawn?
What I've tried so far: I don't know how to deal with the SP cards appearing in 3 places. My (wrong math) for 7 cards is:
(4/60)*(4/59)*(4/58+4/58)*(14/57)*(4/56+3/56+1/56+4/56)*(2/55+1/55)*(54/54)*7!
Which gives 0.902%
For 8 cards: (4/60)*(4/59)*(4/58+4/58)*(14/57)*(4/56+3/56+1/56+4/56)*(2/55+1/55)*(54/54)*(53/53)*8!
For 9 cards: multiply the 8-cards probability by 9.
I know I'm wrong because if the player draws 10 cards, the probability of winning would be > 100%. However, a player draws 10 LA cards would lose.
So, I don't know how to solve this problem & need help!
- 4 VB cards
- 4 HBL cards
- 4 DD cards
- 4 SP cards
- 4 CC cards
- 1 RH cards
- 4 FD cards
- 1 WC cards
- 14 LA cards
- Other misc cards
A player draws 7 cards. To win, the player needs to draw:
* 1 VB card, and
* 1 HBL card, and
* 1 DD or SP card, and
* 1 LA card, and
* 1 CC or SP or RH or FD card, and
* 1 SP or WC card
The remaining card(s) can be anything.
(a) What is the probability of winning if 7 cards are drawn?
(b) What is the probability of winning if 8 cards are drawn?
(c) What is the probability of winning if 9 cards are drawn?
What I've tried so far: I don't know how to deal with the SP cards appearing in 3 places. My (wrong math) for 7 cards is:
(4/60)*(4/59)*(4/58+4/58)*(14/57)*(4/56+3/56+1/56+4/56)*(2/55+1/55)*(54/54)*7!
Which gives 0.902%
For 8 cards: (4/60)*(4/59)*(4/58+4/58)*(14/57)*(4/56+3/56+1/56+4/56)*(2/55+1/55)*(54/54)*(53/53)*8!
For 9 cards: multiply the 8-cards probability by 9.
I know I'm wrong because if the player draws 10 cards, the probability of winning would be > 100%. However, a player draws 10 LA cards would lose.
So, I don't know how to solve this problem & need help!