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Business Modeling-  Confidence Intervals

Statistics- Sampling Revision
Statistics- Explanation of Confidence Intervals

Confidence interval specifies a range of values calculated from given set of sample data such that there is a specified probability that the value of a population parameter lies within it.

Statistics- Confidence Intervals Example Problem

Database Management Systems- Joins Continued

SQl Outer Join
SQL Join Subtraction

Data in Action

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