In a class of 15 students, 10 are expected to pass maths and 12 are expected to pass english.(adsbygoogle = window.adsbygoogle || []).push({});

how many students are expected to pass maths and english?

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the answer given in the book is 7. i don't understand how this answer was reached. could someone please show me how to calculate this answer.

thanks.

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# A conditional probability question

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