What is the probability of selecting a red card or a 5 from a standard deck of 52 cards?
a) 7/13
b) 6/17
c) 1/4
d) 2/5
e) 3/8
Probability
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I believe the answer here is A, assuming that a standard deck is 4 suits of 13 cards each. In that standard deck, 2 of the 4 suits are red (hearts and diamonds), so that would be 2 x 13, plus the 2 5's from the black suits. A total of (2 x 13) + 2 = 28/52, or 7/13.
- indiantiger
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P(RED CARD) = 26/52
P(5 CARD) = 4/52
P(5 and RED CARD) = 2/52
overall probability
P(RED CARD or 5 CARD) = 26/52+4/52-2/52 = 28/52 = 7/13 (Answer)
I hope this helps
P(5 CARD) = 4/52
P(5 and RED CARD) = 2/52
overall probability
P(RED CARD or 5 CARD) = 26/52+4/52-2/52 = 28/52 = 7/13 (Answer)
I hope this helps