# How to create a subset that respect the same distribution of the original data set?

I have a presumably easy question for you, but I am a real newbie in statistics, so please be patient. I have a data set containing $$N$$ values that more or less follows a normal distribution. I need to select $$N/10$$ values among them, creating a subset with the same distribution. How can I do that? Do you have softwares to recommend? I usually use PSPP.

• Why do you need to choose N/10? – rolando2 Apr 23 '18 at 16:00
• Because I have a huge dataset and I cannot afford to continue my analysis and work with all of the values – Elisa Pieri Apr 24 '18 at 9:34