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A teacher calculates that if a student regularly completes their homework, the probability that they pass the exam is 0.8, and that if the student doesn't do their homework regularly

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A teacher calculates that if a student regularly completes their homework, the probability that they pass the exam is 0.8, and that if the student doesn't do their homework regularly, the probability of passing is 0.4, given only 75% of pupils regularly complete their homework, calculate the probability that a randomly selected student:

a) Does not do the homework and passes the exam
b) Passes the exam
asked 7 years ago in Probability by anonymous

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