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  2. Data validation - Wikipedia

    en.wikipedia.org/wiki/Data_validation

    Presence check Checks that data is present, e.g., customers may be required to have an email address. Range check Checks that the data is within a specified range of values, e.g., a probability must be between 0 and 1. Referential integrity Values in two relational database tables can be linked through foreign key and primary key.

  3. Range (statistics) - Wikipedia

    en.wikipedia.org/wiki/Range_(statistics)

    The mean range is given by [5] ... The range is a specific example of order statistics. In particular, the range is a linear function of order statistics, ...

  4. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    The default display format is usually set by its initial content if not specifically previously set, so that for example "31/12/2007" or "31 Dec 2007" would default to the cell format of date. Similarly adding a % sign after a numeric value would tag the cell as a percentage cell format.

  5. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Excel for the web is a free lightweight version of Microsoft Excel available as part of Office on the web, which also includes web versions of Microsoft Word and Microsoft PowerPoint. Excel for the web can display most of the features available in the desktop versions of Excel, although it may not be able to insert or edit them.

  6. Range - Wikipedia

    en.wikipedia.org/wiki/Range

    Range of a function, a set containing the output values produced by a function Range (statistics) , the difference between the highest and the lowest values in a set Interval (mathematics) , also called range , a set of real numbers that includes all numbers between any two numbers in the set

  7. AOL

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  8. Check sheet - Wikipedia

    en.wikipedia.org/wiki/Check_sheet

    A check sheet is a form (document) used to collect data in real time at the location where the data is generated. The data it captures can be quantitative or qualitative. When the information is quantitative, the check sheet is sometimes called a tally sheet. [1] The check sheet is one of the so-called Seven Basic Tools of Quality Control. [2]

  9. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!