请问这个题怎么翻译

问题如下：

Sampling error is:

选项：

A.

An error that occurs in the procedure of collecting, recording, and tabulating data.

B.

An error comes from the scale number of the sample which is less than 20.

C.

The difference between a sample statistic used to estimate a population parameter and the actual but unknown value of the parameter.

解释：

C is correct.

the difference between the sample and population values is considered as a sampling error. A typical example is that the difference between the mean of sample and the mean of the whole population.

样本值和总体值之间的差异被视为抽样误差。 一个典型的例子是样本均值与总体均值之差。