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Mathematics 18 Online
OpenStudy (anonymous):

This table shows the probability distribution of scores on the 2011 AP Chemistry exam. Use the distribution to calculate the expected score of a randomly selected score. Round the answer to the nearest tenth. x p(x) 5 0.170 4 0.184 3 0.195 2 0.146 1 0.304 0.9 2.8 3.0 3.8

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