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Listwise deletion is also problematic when the reason for missing data may not be random (i.e., questions in questionnaires aiming to extract sensitive information. [3] Due to the method, much of the subjects' data will be excluded from analysis, leaving a bias in data findings. For instance, a questionnaire may include questions about ...
Up until the 2007 version, Microsoft Excel used a proprietary binary file format called Excel Binary File Format (.XLS) as its primary format. [30] Excel 2007 uses Office Open XML as its primary file format, an XML-based format that followed after a previous XML -based format called "XML Spreadsheet" ("XMLSS"), first introduced in Excel 2002.
Pivot tables are not created automatically. For example, in Microsoft Excel one must first select the entire data in the original table and then go to the Insert tab and select "Pivot Table" (or "Pivot Chart"). The user then has the option of either inserting the pivot table into an existing sheet or creating a new sheet to house the pivot table.
She also lived at home with her two daughters until she reached age 110. The title of the world’s oldest person now belongs to Inah Canabarro Lucas, who is also 116 years old. She was born on ...
SELECT list is the list of columns or SQL expressions to be returned by the query. This is approximately the relational algebra projection operation. AS optionally provides an alias for each column or expression in the SELECT list. This is the relational algebra rename operation. FROM specifies from which table to get the data. [3]
The Dallas Stars' decision to hold an optional practice the day after Christmas has proved to be a costly one. NHL fines Stars $100K for violating CBA agreement with practice during Christmas ...
Less than one month before the 45th president becomes the 47th, Trump seemed in a good mood. After summoning Sen. Ted Cruz, R-Texas, to the stage, Trump scanned the crowd and didn’t see him at ...
One method of data editing is to ensure that all responses are complete in fields that require a numerical or non-numerical answer. See the example below. In the above table is an example of incomplete and invalid data. See Column 1, Row 2: The answer is alphanumeric when the rest of the table is numeric.