Word: sigmasã
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...average grade in popular science courses should be a B-minus. One standard deviation above the average should earn a student a B-plus. Only those truly exceptional students—those rare double-“sigmas??—should be awarded an A-minus. Put the A out of reach, and most of the sigma fiends will mellow out. Harvard students have spent their whole lives being perfect. If there is anything this school should teach them, it’s that they...
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