- #1
TomJerry
- 50
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Suppose that a person chooses a letter at random from "RESERVE"
Question :
Suppose that a person chooses a letter at random from "RESERVE" and then chooses one at random from "VERTICAL" . Find the probability that the same letter is choosen.
Solution:
Probability of choosing letter from "RESERVE" is P(A) = 1/7
Probability of choosing letter from "VERTICAL" is P(B) = 1/8
Probability of choosing letter which exist in both would be P(A intersection B) = P(A) . P(B)
= 1/56 [Is this correct]
Question :
Suppose that a person chooses a letter at random from "RESERVE" and then chooses one at random from "VERTICAL" . Find the probability that the same letter is choosen.
Solution:
Probability of choosing letter from "RESERVE" is P(A) = 1/7
Probability of choosing letter from "VERTICAL" is P(B) = 1/8
Probability of choosing letter which exist in both would be P(A intersection B) = P(A) . P(B)
= 1/56 [Is this correct]