问题描述：
英语翻译
1.population is a collection,or set,of individuals ,objects,or events whose properties are to be analyzed.
2.variable(or response variable) is a characteristic of interest about each individual element of a population or sample.
1.population is a collection,or set,of individuals ,objects,or events whose properties are to be analyzed.
2.variable(or response variable) is a characteristic of interest about each individual element of a population or sample.
问题解答：
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