Data Analysis Basics

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Questions and Answers

What is the primary purpose of data processing?

  • To compute statistical measures and search for patterns
  • To test hypotheses and draw conclusions
  • To edit, code, classify and tabulate collected data (correct)
  • To collect raw data from various sources

Which of the following is NOT a step in the process of data analysis?

  • Subjecting relationships to statistical tests
  • Collecting raw data from primary sources (correct)
  • Searching for patterns of relationships
  • Computing measures of central tendency

What is the purpose of subjecting relationships to statistical tests of significance?

  • To determine the validity of conclusions drawn from the data (correct)
  • To compute measures of central tendency
  • To edit and code the collected data
  • To identify patterns and trends in the data

Which level of measurement is used for categorizing variables like rock types or shapes?

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

What is the mode as a measure of central tendency?

<p>The most frequent value in the dataset (C)</p> Signup and view all the answers

Which level of measurement allows for ranking or ordering of data values?

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

What does 'mean' represent in statistics?

<p>The sum of all values divided by the total number of values (B)</p> Signup and view all the answers

Which data type involves naming categories without ranking them?

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

In which data type are categories ranked but the differences between them are not necessarily equal?

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

Which data type involves precise ranking with equal intervals between categories?

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

What is the key feature of ordinal data?

<p>Precise ranking with inconsistent intervals (A)</p> Signup and view all the answers

Which data type involves numerical values with a true zero point?

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

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