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Trivia Flashcards

7 cards from real Data Science practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Trivia flashcards as text

  1. Which programming language is most commonly associated with the pandas library for data analysis?

    Answer: Python

    Pandas is a Python library built for data manipulation and analysis.

  2. What does the acronym 'CSV' stand for in data file formats?

    Answer: Comma-Separated Values

    CSV files store tabular data as plain text with values separated by commas.

  3. In statistics, what is the middle value of an ordered dataset called?

    Answer: Median

    The median is the central value when data is sorted in order.

  4. Which type of chart is best for showing the relationship between two continuous variables?

    Answer: Scatter plot

    A scatter plot displays paired numeric values to reveal correlation.

  5. What does 'SQL' stand for?

    Answer: Structured Query Language

    SQL is the standard language for querying relational databases.

  6. Which measure describes how spread out data values are around the mean?

    Answer: Standard deviation

    Standard deviation quantifies the dispersion of data around the average.

  7. What is the process of cleaning and transforming raw data into a usable format called?

    Answer: Data wrangling

    Data wrangling (or munging) prepares messy raw data for analysis.