单选题 Sample error is defined as:

A、 an error that occurs when a sample of less than 30 elements is drawn.
B、 an error that occur during collection, recording, and tabulation of data.
C、 the difference between the value of a sample statistic and the value of the corresponding population parameter.

【正确答案】 C

【答案解析】[解析] 抽样误差是指样本统计值(如平均值、方差和标准差等)与其对应的总体参数之间的差值。例如，平均值的抽样误差等于样本平均值减去总体平均值。因此，本题的正确选项为C。