Mathematics (AS & A Level) · Oct / Nov 2017 · Paper 63 · Question 3
9709
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The question as text
At the end of a revision course in mathematics, students have to pass a test to gain a certificate. The probability of any student passing the test at the first attempt is 0.85. Those students who fail are allowed to retake the test once, and the probability of any student passing the retake test is 0.65.
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3(i)[2]
3(ii)[4]
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