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2. Of the group of pupils studying at A-level in schools in a certain area, 56% are boys and 44% are girls. The probability that

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2. Of the group of pupils studying at A-level in schools in a certain area, 56% are boys and 44% are girls. The probability that a boy of this group is studying Chemistry is 1/5 and the probability that a girl of this group is studying Chemistry is 1/11. Find the nrobabilitv that

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