How to choose a sample from the data points that represent normal distribution?
With the given information, this is a sampling question. I am not sure whether this is an acceptable practise to choose a targeted sample. Instead, choose samples randomly and make sure they follow normal distribution. If the sample is not normally distributed, try normalizing your target value using transformation procedures. For example, a square root transformation might make your target value normal. More information on the problem will help address this comprehensively.
I have a data frame in which the target value is not in normal distribution. I want to choose only a sample of the data that represent a normal distribution of this target. How can I do this?