随机变量的方差衡量随机变量值与期望值偏离的程度。
The variance of a random variable measures how far from the expected value its values typically are.
这接近30%的变动表明了房屋价格和租金偏离的程度，并且说明房屋价格很有必要进行下调。
This 30 percent difference indicates how disconnected home prices are from rents and how necessary it is for home prices to decline.
高偏离率可能是一个问题，因为被误导的鱼可能会与现有种群杂交，而这种杂交的程度会稀释现有的任何当地适应能力。
High rates of straying can be problematic because misdirected fish may interbreed with the existing stock to such a degree that any local adaptations that are present become diluted.
应用推荐