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Question: What is the probability of choosing a vowel in the word REPITITION?


A ) 12
B ) 15
C ) 25
D ) 35

Steps to derive

1 Number of favorable outcomes = number of vowels in the word = 5

2 Total number of possible outcomes = total number of letters in the word = 10

3 P(vowel) = (number of favorable outcomes) / (total number of possible outcomes)

 [Substitute and simplify.]
4 = 510 = 12

5 Probability of choosing a vowel from the word REPITITION is 12.



Hence the right answer is Option A

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