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Question
A card is drawn from a pack of 52 cards. Find the probability that the card drawn is a black ace.
Solution
Number of possible outcomes when card is drawn from pack of 52 cards = 52
n(S) = 52
Number of black ace cards = 2
E = event of drawing an ace
n(E) = 2
Probability of drawing a black ace = `(n(E))/(n(S)) = 2/52 = 1/26`
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Solution:
Suppose ‘S’ is sample space.
∴ n(S) = 52
Event A: Card drawn is a red card.
∴ Total red cards = `square` hearts + 13 diamonds
∴ n(A) = `square`
∴ p(A) = `square/("n"("s"))` ....formula
∴ p(A) = `26/52`
∴ p(A) = `square`
