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Question: What is the probability of selecting a vowel from the word "CHRISTOPHER"?


A ) 411
B ) 311
C ) 111
D ) 211

Steps to derive

1 Total number of letters in the word "CHRISTOPHER" is 11.

2 So, the number of possible outcomes is 11.

3 Number of favorable outcomes is 3.
 [I, O, E are the only vowels present in the word.]

4 Probability(event) = (Number of favorable outcomes)(Number of possible outcomes)
 [Formula]

 [Substitute the values.]
5 P(vowels) = 311

6 Probability of selecting a vowel from the word "CHRISTOPHER" is 311.



Hence the right answer is Option B

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