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