Mathematics, 18.08.2020 04:01 mat1413

In the class of 40 students,18 passed mathematics,19 passed account,16 passed economics,5 passed mathematics and accounts only ,2 passed accounts and economics only. if each student offered at least one of the subject a: how many students failed in all the subjects
b: find the percentage number who failed in at least one of economics and mathematics
C: calculate the probability that a student selected at random failed in accounts..

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In the class of 40 students,18 passed mathematics,19 passed account,16 passed economics,5 passed mat...

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