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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?

Nominal Signup and view all the answers

What is the mode as a measure of central tendency?

The most frequent value in the dataset Signup and view all the answers

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

Ordinal Signup and view all the answers

What does 'mean' represent in statistics?

The sum of all values divided by the total number of values Signup and view all the answers

Which data type involves naming categories without ranking them?

Nominal Signup and view all the answers

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

Ordinal Signup and view all the answers

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

Ratio Signup and view all the answers

What is the key feature of ordinal data?

Precise ranking with inconsistent intervals Signup and view all the answers

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

'Ratio' Signup and view all the answers