A coin is biased so that, on each toss, the probability of obtaining a head is 0.4.
Question:
A coin is biased so that, on each toss, the probability of obtaining a head is 0.4. The coin is tossed twice.
(a) Calculate the probability that at least one head is obtained.
(b) Calculate the conditional probability that exactly one head is obtained, given that at least one head is obtained. (C)
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Related Book For 
A Concise Course In Advanced Level Statistics With Worked Examples
ISBN: 9780748754755
4th Edition
Authors: J. Crawshaw, J. Chambers
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