Standardized tests for certain subjects, given to high school students, are scored on a scale of 1 to 5. Let X represent the score on a randomly selected exam. The distribution of scores for one subject's standardized test is given in the table. Score 1 Probability 0.18 2 0.20 3 4 0.26 0.21 5 0.15 What is the mean of the distribution? 2.5 2.95 3 3.5

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