The preciseness of this data depends upon a large number of factors such as the type of sampling algorithm used, the number of samples taken, and the skew of the data.
这种数据的准确性取决于很多因素，例如采用的抽样算法的类型、抽样的数量和数据的歪斜情况。
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The Response Time Breakdown page allows you to set the type of data that you see during a run, the sampling rate for that data, and whether data is collected from all users or a representative sample.