This is a Excellent Application on Learning Statistics Includes Video Training and Practice Exam
Statistics is the study of the collection, organization, analysis, interpretation, and presentation of data. It deals with all aspects of this, including the planning of data collection in terms of the design of surveys and experiments.
A statistician is someone who is particularly well-versed in the ways of thinking necessary to successfully apply statistical analysis. Such people often gain experience through working in any of a wide number of fields.
Simple and intuitive Time Tracker featuring an unlimited number of hierarchical tasks, simple statistics and exporting to e.g. iCal and Excel.
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