Mathematics 1225A/B Study Guide - Nipple, Bernoulli Trial, European Route E6
22 May 2014
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[ 1 mark ] an experiment consists of drawing 6 balls from a box with 10 red, 5 green and 15 blue balls. A: {at least 5 balls are blue, at least one ball is red, at least one ball is green} B: {more red than green, more green than red, same number of all 3 colours} C: {all balls are red, all balls are blue, some balls are green} D: {more blue than green, more green than blue, same number of blue and green} E: {not more than 4 blue, not more than one red, not more than one green} Solution: we need to identify which one of the sets is a complete set of non-overlapping descriptions of the things that could happen when this experiment is performed. The only set satisfying both these criteria is the set {more blue than green, more green than blue, same number of blue and green}.
