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प्रश्न
A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the
probability that ball drawn is white?
उत्तर
Total no. of possible outcomes = 12 {5 white, 7 red}
E ⟶ event of drawing white ball.
No. of favorable outcomes = 5 {white balls are 5}
Probability, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
P(E) =5/12
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