Introduction to data science Archives - Page 3 of 11 - MCQ and Quiz for Exams

21. Which of the following design term is perfectly applicable to the below figure?

Correlation

Confounding

Causation

None of the mentioned

Detailed SolutionWhich of the following design term is perfectly applicable to the below figure?

22. Which of the following is performed by Data Scientist?

Define the question

Create reproducible code

Challenge results

All of the mentioned

Detailed SolutionWhich of the following is performed by Data Scientist?

23. What is the process of extracting patterns and information from data called?

Data Wrangling

Data Visualization

Data Engineering

Data Mining

Detailed SolutionWhat is the process of extracting patterns and information from data called?

24. Causal analysis is commonly applied to census data.

TRUE

nan

nan

nan

Detailed SolutionCausal analysis is commonly applied to census data.

25. Which type of data is represented by categories or labels and cannot be measured numerically?

Numerical Data

Categorical Data

Continuous Data

Ordinal Data

Detailed SolutionWhich type of data is represented by categories or labels and cannot be measured numerically?

26. What is the term for the process of cleaning and organizing data into a structured format suitable for analysis?

Data Transformation

Data Visualization

Data Aggregation

Data Extraction

Detailed SolutionWhat is the term for the process of cleaning and organizing data into a structured format suitable for analysis?

27. Which of the following approach should be used to ask Data Analysis question?

Find only one solution for particular problem

Find out the question which is to be answered

Find out answer from dataset without asking question

None of the mentioned

Detailed SolutionWhich of the following approach should be used to ask Data Analysis question?

28. Which statistical measure represents the middle value of a dataset when it is sorted in ascending order?

Median

Mean

Standard Deviation

Mode

Detailed SolutionWhich statistical measure represents the middle value of a dataset when it is sorted in ascending order?

29. Which of the following is one of the key data science skills?

Statistics

Machine Learning

Data Visualization

All of the mentioned

Detailed SolutionWhich of the following is one of the key data science skills?

30. Which of the following systems record changes to a file over time?

Record Control

Version Control

Forecast Control

None of the mentioned

Detailed SolutionWhich of the following systems record changes to a file over time?

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