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प्रश्न
In a single throw of a dice, find the probability that the number will be an even number.
उत्तर
Sample space = {1, 2, 3, 4, 5, 6}
n(s) = 6
E = event of getting an even number = {2, 4, 6}
n(E) = 3
Probability of a getting an even number = `(n(E))/(n(s)) = 3/6 = 1/2`
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संबंधित प्रश्न
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A card is drawn from a well-shuffled pack of 52 playing cards. Find the probability of the event, the card drawn is a red card.
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`
