Susan takes examinations in Mathematics, French, and History. The probability that she passes Mathematics is 0.7; the
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Susan takes examinations in Mathematics, French, and History. The probability that she passes Mathematics is 0.7; the corresponding probabilities for French and History are 0.8 and 0.6. Given that her performances in each subject are independent, draw a tree diagram to show the possible outcomes. Use this tree diagram to calculate the following probabilities:
(a) Fails all three examinations
(b) Fails just one examination.
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