n. the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
n. an official dispensation to act contrary to a rule or regulation (typically a building regulation)
n. 不一致, 变化, 变异, 分歧, 不和
[化] 方差; 变种
1. The variance in test scores showed that some students performed much better than others.
测试分数的方差显示出一些学生的表现远远好于其他学生。
2. To understand the variance in weather patterns, scientists collect data over many years.
为了理解天气模式的方差，科学家们收集了多年的数据。
3. The company analyzes the variance in sales to improve their marketing strategies.
公司分析销售方差以改善他们的营销策略。