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Practice Listening: Select Missing Word
ID: #36635
Short
Inferential statistics
Transcript:
Yeah, inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations, for example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu or whatever. Having little knowledge of statistics, the superintendent would know that it is unnecessary and inefficient. To question each child. The proportion for the entire district could be estimated fairly accurately from a sample of a few as a hundred children bus. This is inferential statistics is to predict or estimate characteristics of a population from a knowledge of the characteristics of only a sample....
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