Mathematics, 27.06.2020 03:01 samtrevino22

In 2016, the mean score on the AP Biology exam was 3.10, with a standard deviation of 1.05. The mean score on the AP US History exam was a 2.74, with a standard deviation of 1.42. What is the combined mean and standard deviation for these exams?

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In 2016, the mean score on the AP Biology exam was 3.10, with a standard deviation of 1.05. The mean...

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