An exam contains two multiple choice questions. The first question has four possible answers, while the second
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An exam contains two multiple choice questions. The first question has four possible answers, while the second one has five. If a student taking the exam answers both questions completely at random, the probability that he/she gives at least one wrong answer is
(a) 12∕20
(b) 19∕20
(c) 1∕15
(d) 1∕20
(e) 14∕15
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Related Book For
Introduction To Probability Volume 2
ISBN: 9781118123331
1st Edition
Authors: Narayanaswamy Balakrishnan, Markos V. Koutras, Konstadinos G. Politis
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