名词短语
中文翻译：加权平均数
同义词：
['weighted average', "weighted mean例句：1. The company's profitability is heavily influenced by its sales volume.（该公司的利润受其销售额的严重影响。）"]
例句：
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1. The company's profitability is heavily influenced by its sales volume.
该公司的利润受其销售额的严重影响。
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2.The weighted average of the students' scores is 85 out of 100.
学生的平均成绩是85分，满分为100分。
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3.The weighted average of the population growth rate is 2% per year.
人口增长率的加权平均值是每年2%。