If a card is drawn from a deck, what is the chance that it will be a diamond, a spade or a
king?
A. 7/13
B. 1/2
C. 15/26
D. 8/13
E. None of the above
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probability from deck of cards
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Answer is B 1/2?jamesk486 wrote:If a card is drawn from a deck, what is the chance that it will be a diamond, a spade or a
king?
A. 7/13
B. 1/2
C. 15/26
D. 8/13
E. None of the above
(13/52+13/52+4/52)-(1/52+1/52)
(Prob of diamond+prob of Spade +Prob of King) -(Prob of Diamond king + prob of spade king)
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indiantiger
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Answer A
probability of diamond is = 13C1/52C1
probability of spade is = 13C1/52C1
probability of king = 4C1/52C1
probability of diamond king is = 1/52C1
probability of spade king is = 1/52C1
total probability = 13/52 + 13/52 + 4/52 -1/52 -1/52 = 7/13
probability of diamond is = 13C1/52C1
probability of spade is = 13C1/52C1
probability of king = 4C1/52C1
probability of diamond king is = 1/52C1
probability of spade king is = 1/52C1
total probability = 13/52 + 13/52 + 4/52 -1/52 -1/52 = 7/13
"Single Malt is better than Blended"
JeetGulia wrote:Answer is B 7/13...correctionjamesk486 wrote:If a card is drawn from a deck, what is the chance that it will be a diamond, a spade or a
king?
A. 7/13
B. 1/2
C. 15/26
D. 8/13
E. None of the above
(13/52+13/52+4/52)-(1/52+1/52)
(Prob of diamond+prob of Spade +Prob of King) -(Prob of Diamond king + prob of spade king)
