What is a spreadsheet?
AnswerA grid of rows and columns for organizing data
Spreadsheets organize data in cells.
Tech · Facts & stats
Data facts & stats
7 fact-checked facts about data, statistics and data visualization, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What does CSV stand for?
AnswerComma-Separated Values
CSV files store table data as plain text separated by commas.
Going deeper
What is the median of 3, 7 and 9?
Answer7
The median is the middle value in sorted order.
What does SQL stand for?
AnswerStructured Query Language
SQL is used to query databases.
Florence Nightingale is known in data history for which type of chart?
AnswerPolar area diagram
Her polar area 'rose' diagrams showed causes of soldier deaths.
Expert level
What is the range of values for a correlation coefficient?
Answer-1 to 1
Correlation runs from perfectly negative (-1) to perfectly positive (1).
Who wrote the 1983 book 'The Visual Display of Quantitative Information'?
AnswerEdward Tufte
Tufte's book is a classic of data visualization.
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