joint variance的用法和样例:
例句
- Even with necessities, differences in taste and patterns of consumption lead to variance in the price structure.
甚至就生活必需品而言,消费品的味和方式上的不同会导致价格结构上的差异。 - This may not be realistic since there with more education may experience larger variance in wages.
如果接受高等教育的人面临的机会更多,收入的差异可能更大,在这一情形中,上述假定未必成立。