In a survey, 15% of the participants said that they had never bought lottery tickets or a
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In a survey, 15% of the participants said that they had never bought lottery tickets or a premium bonds, 73% had bought lottery tickets and 49% had bought premium bonds. Find the probability that a person chosen at random from those taking part in the survey
(a) had bought lottery tickets or premium bonds,
(b) had bought lottery tickets and premium bonds,
(c) had bought lottery tickets only.
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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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