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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