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sveta [45]
3 years ago
8

There are

Mathematics
1 answer:
irinina [24]3 years ago
6 0
First take the total of students ( 18 + 22 ) = 40. To calculate the percentage take the total of boys and divide it by the total of 40, and multiply by 100%. That gives 22 : 40 x 100% = 55. So the probability that a boy has the letter is 55%.
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