Question

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?

Answer 1

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

Answer 2

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