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## anonymous 3 years ago if a student passes a math test 65% of the time and a math quiz 85% of the time, what is the probability that the student passes at least one test or quiz?

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1. anonymous

wouldn't it be $\frac{ 13 }{ 20 }$ for the math tests; And then $\frac{ 17 }{ 20 }$ for the math quizzes?? you may want to check my work and get a second opinion

2. amistre64

it would be 1, minus the probability that they pass no tests

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