Probability Basicseasy
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A student either studies (probability 0.8) or does not study (probability 0.2) before an exam. If the student studies, they pass with probability 0.9. If they do not study, they pass with probability 0.3. What is the probability that the student studies AND passes the exam?
A student either studies (probability 0.8) or does not study (probability 0.2) before an exam. If the student studies, they pass with probability 0.9. If they do not study, they pass with probability 0.3. What is the probability that the student studies AND passes the exam?