The quiz scores for two different groups of math students are given below. Use the mean and standard deviation to determine which group had a higher average, and which group was more consistent.
Group A - 95, 87, 93, 80, 72, 75, 90, 91, 66, 75
Group B - 71, 75, 87, 90, 90, 91, 85, 84, 87, 80
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