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1. 21. Sample Mean Distribution [2023]- Mr C.Tan
2. 21. Sample Mean Distribution [2023]- Mr A.Ang
![21. Sample Mean Distribution [2023]- Mr C.Tan](http://edutv.sg/public/uploads/16835251039299.png)
![21. Sample Mean Distribution [2023]- Mr A.Ang](http://edutv.sg/public/uploads/16835251035177.png)