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In order to calculate the average and standard deviation from aggregate data, it is necessary to have available for each group: the total of values (Σx i = SUM(x)), the number of values (N=COUNT(x)) and the total of squares of the values (Σx i 2 =SUM(x 2)) of each groups.
Excel pivot tables include the feature to directly query an online analytical processing (OLAP) server for retrieving data instead of getting the data from an Excel spreadsheet. On this configuration, a pivot table is a simple client of an OLAP server.
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(Reuters) -Wall Street's main stock indexes were set to open lower on Friday, with investors staying cautious ahead of economic data, while planemaker Boeing dropped after issuing a quarterly ...
SOFA Statistics is an open-source statistical package.The name stands for Statistics Open For All.It has a graphical user interface and can connect directly to MySQL, PostgreSQL, SQLite, MS Access (map), and Microsoft SQL Server.
Denmark's government has proposed purchasing two new Arctic inspection vessels and increasing dog sled patrols to boost its military presence in Greenland, as U.S. President-elect Donald Trump ...
And she said, 'Yes.' And then we went on a couple of dates, and then I got to know her," he explained. When they went on their first date, Ansari said that she knew Easter was the right man for ...