It reminds me of a joke about the statistician who drowned in a pool with an average height of 10 inches.
这让我想起一个统计学笑话,在一个平均水深为10英寸的游泳池里,谁会被淹死。
You see you cannot tell the height or the depth rather of a pool based on the average.
只知道平均值,并不知道游泳池的水深。
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