Even on the more 'normal' side - market sizing questions within normal case questions - interviewees often freeze up at the thought of tackling this ambiguous estimation question.
更多“正常”的情况是，市场规模估算问题嵌套于一般的案例题目中。面对如此模棱两可的估算问题，通常，面试者的脑子一片空白。
A cost estimation that assumes normal data distribution may not best reflect the real cost of a query when different parameters are used.
假定正常数据分布的开销评估可能并不能最好地反映查询使用不同参数时的实际开销。
Under normal circumstances, the painter in the estimation, the proportion with this simple method.
在一般情况下，画家在估计各部分比例时，都用这种简易方法。
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