rikko119 rikko119

24-03-2017
Mathematics

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What is the probability that one will be red and one will be blue

What is the probability that one will be red and one will be blue class=

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texaschic101 texaschic101

24-03-2017

5 red, 15 blue, 5 green....total of 25 marbles

probability that one is red : 5/25 = 1/5
replaces it
probability that one is blue : 15/25 = 3/5

probability of both : 1/5 * 3/5 = 3/25 = 0.12 = 12% <==

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