Maths Tutorial: Z Scores (Standard scores) in statistics
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VCE Further Maths Tutorials. Core (Data Analysis) Tutorial 11: Z scores (sometimes called standard score or standardised score). This tute runs through how Z scores work, how they relate to the 68-95-99.7% rule, and how to use the formula to calculate them. For more tutes, visit http://www.vcefurthermaths.com