photograph credit: http://www.statisticshowto.com/simple-random-sample/
Adding noise to data
Returns the inverse of the normal cumulative distribution for the specified hateful as well as criterion deviation).
=norm.inv(rand(),20,10)
Another Way
every bit explained inwards this video:https://www.youtube.com/watch?v=kIw5Y9J7lg0
Source: https://www.youtube.com/watch?v=q8fU001P2lI
For more: https://www.youtube.com/watch?v=7xkswPZF5i8
It tin move applied for implementing the noise mentioned inwards this journal: http://www.sciencedirect.com/science/article/pii/S0169207017300900?via%3Dihub