In a university 20% students belong to the school of business (B), 15% to the school...

In a university 20% students belong to the school of business (B), 15% to the school of
engineering(E) and 30% belong to the school of social sciences(S). Of the school of
business students 35% have taken a statistics course, of the school of engineering
students 45% have taken a statistics course, and of the school of social sciences
students, 20% have taken a statistics course. Between the three schools, what fraction
of students have taken a statistics course (Q)? If a randomly selected student is found
to have taken a statistics course, what is the chance that the student belongs to the
school of business?

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orchestra answered 1 year ago

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