Data Science Trivia 2 — Questions and Answers
Question 1: Which programming language is most commonly associated with the pandas library for data analysis?
- Python (Correct answer)
- Java
- C++
- Ruby
Correct answer: Python
Pandas is a Python library built for data manipulation and analysis.
Question 2: What does the acronym 'CSV' stand for in data file formats?
- Comma-Separated Values (Correct answer)
- Column-Sorted Variables
- Computed Statistical Vectors
- Coded System Values
Correct answer: Comma-Separated Values
CSV files store tabular data as plain text with values separated by commas.
Question 3: In statistics, what is the middle value of an ordered dataset called?
- Median (Correct answer)
- Mean
- Mode
- Range
Correct answer: Median
The median is the central value when data is sorted in order.
Question 4: Which type of chart is best for showing the relationship between two continuous variables?
- Scatter plot (Correct answer)
- Pie chart
- Bar chart
- Histogram
Correct answer: Scatter plot
A scatter plot displays paired numeric values to reveal correlation.
Question 5: What does 'SQL' stand for?
- Structured Query Language (Correct answer)
- Sequential Query Logic
- System Quality Language
- Simple Question Layer
Correct answer: Structured Query Language
SQL is the standard language for querying relational databases.
Question 6: Which measure describes how spread out data values are around the mean?
- Standard deviation (Correct answer)
- Median
- Mode
- Percentile
Correct answer: Standard deviation
Standard deviation quantifies the dispersion of data around the average.
Question 7: What is the process of cleaning and transforming raw data into a usable format called?
- Data wrangling (Correct answer)
- Data mining
- Data hashing
- Data caching
Correct answer: Data wrangling
Data wrangling (or munging) prepares messy raw data for analysis.
Data Science Trivia 2
Which programming language is most commonly associated with the pandas library for data analysis?