W/S, Jarque-Bera, Shapiro-Wilks, Kolmogorov Smirnov, D’Agostino Test - Normality Test | Statistics 

For Continuous Variable data Normal distribution is required. For Discrete Variable data other distributions are done. Also to study a specific trait or variable in a given population parametric tests are done. For parametric test checking Normality of the data is essential.

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