名词短语
中文翻译：标准差减少
同义词：
['decrease in standard deviation', 'decrease in standard deviations', "decrease in standard deviations例句：1. The team's performance has been steadily improving over the past year.（过去一年，该团队的表现稳步提升。）"]
例句：
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1. The team's performance has been steadily improving over the past year.
过去一年，该团队的表现稳步提升。
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2. The error rate has decreased significantly since we implemented these improvements.
自从我们实施了这些改进措施后，错误率显著下降。
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3. The researchers found that the variance in the data had decreased after the experiment.
研究人员发现，在实验之后数据方差减少了。