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Practice Listening: Select Missing Word ID: #36635 Short Inferential statistics
Instructions ›
You will hear a recording about a topic. At the end of the recording the last word or group of words has been replaced by a beep. Select the correct option to complete the recording.

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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Result:

AI explanationShows the answer. Tap to open.
Option 1: "of the population"

Explanation: The text discusses inferential statistics, which is fundamentally about making predictions or estimates regarding a larger group (the population) based on a smaller sample. The phrase 'of the population' directly aligns with the main idea of the text, which emphasizes estimating characteristics of a population from a sample. This is supported by the context where the superintendent aims to determine the proportion of children in a large school system.

Option 2: "of observations"

Explanation: While the text mentions 'observations,' this option does not fit the context of predicting characteristics of a population. The phrase 'of observations' is too vague and does not convey the intended meaning of estimating population characteristics, which is the focus of inferential statistics.

Option 3: "of the children"

Explanation: This option is incorrect because it narrows the focus to just 'the children' rather than the broader concept of 'the population.' The text emphasizes making predictions about a larger group, and 'of the children' does not capture the essence of inferential statistics as described.

Option 4: "of the child"

Explanation: Similar to Option 3, this option is incorrect as it refers to a singular 'child' rather than the entire population. The text's context is about estimating characteristics of a larger group, making 'of the child' insufficient and irrelevant to the main idea of inferential statistics.

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