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A box contains 9 balls numbered 1 to 9. A ball is taken at random from the box. Find the probability that the ball has an even number. number of successes ---------------------------- = Probability number of possibilities The balls are: 1,2,3,4,5,6,7,8,9 Successes (evens) are: 2,4,6,8 {that's four total} Probability of drawing an even is 4/9 © Algebra House 
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7/21/2013 10:30:45 pm
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