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प्रश्न
In a lottery there are 10 prizes and 25 blanks. What is the probability of getting a prize?
योग
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उत्तर १
Total no. of possible outcomes = 35 {10 prizes, 25 blanks}
⟶ Event of getting a prize
No. of favourable outcomes = 10 {10 prizes}
Probability, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
= `10/35`
= `2/7`
shaalaa.com
उत्तर २
Total number of possible outcomes, n(S) = 10 + 25 = 35
Total number of prizes, n(E) = 10
Probability of getting a prize
= `(n(E))/(n(S))`
= `10/35`
= `2/7`
shaalaa.com
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