Ten CUNY Econ 249 students took Exam #1. Their scores are shown in the table below. Student Score 1 68 2 85 3 87 4 92 5 96 6 75 7 81 8 84 9 92 10 56 The variance of these ten scores is closest to 81 85 150 12
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To find the mean, we add up all the scores and divide by the number of scores. Mean = (68 + 85 + 87 + 58 + 10 + 56) / 6 = 354 / 6 = 59 Show more…
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