平均值：即平均数，将所有数据加起来，除以数据的个数即可得。 罸。
Mean is just the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
平均值：即平均数，将所有数据加起来，除以数据的个数即可得。 罸。
Mean is just the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
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