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2 August, 14:33

In 2016, the mean score on the AP Statistics exam was 2.80, with a standard deviation of 1.35. The mean score on the AP Calculus exam was a 2.86, with a standard deviation of 1.55. What is the combined mean and standard deviation for these exams?

Mean, 2.83; standard deviation, 0.2

Mean, 5.66; standard deviation, 2.9

Mean, 5.66; standard deviation, 2.055

Mean, 2.83; standard deviation, 2.9

Mean, 5.66; standard deviation, 4.225

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  1. 2 August, 17:27
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    benjamin is good 2-3x
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