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प्रश्न
Ten cards with numbers 1 to 10 written on them are placed in a bag. A card is chosen from the bag at random. Determine the probability of choosing:
(i) 7
(ii) 9 or 10
(iii) a number greater than 4
(iv) a number less than 6
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उत्तर
Total Number of outcomes = 10
i.e. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
(i) P (of getting a number 7) = `1/10`
(ii) P (of getting 9 or 10) =`2/10=1/5`
(iii) Numbers greater than 4 are 5, 6, 7, 8, 9 and 10 = 6
P (of getting number greater than 4)
= `6/10=3/5`
(iv) Numbers less than 6 are 1, 2, 3, 4, 5 = 5
P (of getting a number less than 6)
=`5/10=1/2`
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