Question: The averages and standard deviations for the three sections are 68.7 and 25.1, 58.9 and 22.7, 59.9 and 24.8, respectively. Can you calculate the overall

The averages and standard deviations for the three sections are 68.7 and 25.1, 58.9 and 22.7, 59.9 and 24.8, respectively. Can you calculate the overall average and overall standard deviation if the number of students in the sections is 60, 98, and 111, respectively? PS: PLEASE SHOW AND EXPLAIN THE LOGIC BEHIND YOUR ANSWERS. ESPECIALLY STD DEV PART. THANKS IN ADVANCE

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