Statistical Fundamentals Quiz
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Questions and Answers

Which of the following best describes the discipline of statistics?

  • The collection and organization of data
  • The analysis and interpretation of data (correct)
  • The study of populations and their characteristics
  • The planning of data collection

What is the purpose of using representative sampling in statistics?

  • To extend conclusions from the sample to the population (correct)
  • To collect census data
  • To design surveys and experiments
  • To manipulate the system under study

When census data cannot be collected, how do statisticians gather data?

  • By conducting surveys and experiments (correct)
  • By manipulating the system under study
  • By collecting data from diverse groups
  • By developing specific experiment designs

What is the first step in applying statistics to a problem?

<p>Defining the statistical population (B)</p> Signup and view all the answers

What does an experimental study in statistics involve?

<p>Manipulating the system under study (A)</p> Signup and view all the answers

Which type of statistical analysis infers properties of a population by testing hypotheses and deriving estimates?

<p>Inferential statistics (D)</p> Signup and view all the answers

What is the process of using data analysis to infer properties of an underlying distribution of probability called?

<p>Inferential statistics (A)</p> Signup and view all the answers

In machine learning, what is the term used to mean 'make a prediction, by evaluating an already trained model'?

<p>Predictive inference (B)</p> Signup and view all the answers

What does descriptive statistics solely focus on?

<p>Properties of the observed data (A)</p> Signup and view all the answers

What is the term used in machine learning when inferring properties of the model?

<p>Machine learning (B)</p> Signup and view all the answers

Which type of statistics is solely concerned with properties of the observed data, without assuming it comes from a larger population?

<p>Descriptive statistics (D)</p> Signup and view all the answers

What is the term used in machine learning to refer to making predictions using an already trained model?

<p>Prediction (D)</p> Signup and view all the answers

What is the process of using data analysis to infer properties of an underlying distribution of probability called?

<p>Inferential statistics (A)</p> Signup and view all the answers

What does inferential statistical analysis do?

<p>All of the above (D)</p> Signup and view all the answers

What is the term used in machine learning to refer to inferring properties of the model?

<p>Training (A)</p> Signup and view all the answers

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