应用领域抽样调查主要应用于以下几个方面:(1)某些总体本身的性质决定了

Application field <br>sampling surveys are mainly used in the following aspects: <br><br>(1) The nature of certain populations determines the situations that cannot be fully investigated but must be fully understood, such as infinite populations (quality of continuous production products, etc.). <br><br>(2) Certain situations that can be comprehensively investigated in theory, but are actually impossible and unnecessary, such as investigating the travel of urban residents. <br><br>(3) Although some general investigations can be done in theory, they are actually impossible, such as destruction test (light bulb life, lethality of shells, etc.). <br><br>(4) Certain special populations require quite qualified investigators to conduct them. For this reason, only sample surveys can be used, such as the general survey of science and technology. <br><br>(5) In order to improve the timeliness, it is required to obtain the overall situation in a short time. <br><br>(6) The principle of sampling survey can also be used to test the hypothesis of a certain population to judge the authenticity of this hypothesis and decide whether to act.

Applications<br>Sample surveys are mainly used in the following areas:<br><br>(1) The nature of certain populations themselves determines situations that cannot be fully investigated but are fully understood, such as infinite populations (quality of continuously produced products, etc.).<br><br>(2) Some general theory can be fully investigated, but in practice it is not possible and unnecessary, such as the survey of urban residents travel.<br><br>(3) Some general theory, although fully investigated, is virtually impossible, such as damage tests (lamp life, shell damage, etc.).<br><br>(4) For certain special populations, qualified investigators are required to carry out such purposes, for which only sample surveys, such as those in the field of science and technology, can be used.<br><br>(5) In order to improve the statute of limitations, it is required to obtain information on the overall situation within a short period of time.<br><br>(6) Using the principle of sampling survey can also test the assumptions of a population to determine the authenticity of such assumptions, in order to determine the action of the choose between.

application area <br>Sampling survey is mainly used in the following aspects:<br>(1) The nature of some populations determines that they cannot be fully investigated but need to be fully understood, such as infinite populations (the quality of products produced continuously, etc.).<br>(2) Although the overall theory can be fully investigated, but in fact it is impossible and unnecessary, such as investigating the travel situation of urban residents.<br>(3) Although some general theories can be fully investigated, they are actually impossible, such as damage tests (lamp life, the lethality of shells, etc.).<br>(4) Some special populations can only be conducted by qualified investigators. For this reason, sampling survey can only be used, such as the survey of science and technology population.<br>(5) In order to improve the prescription, it is required to obtain the general information in a short time.<br>(6) Using the principle of sampling survey, we can also test the hypothesis of a certain population to judge whether the hypothesis is true or not, so as to decide the choice of action.<br>