random vector lenght populated with random values

To all,

I am looking/thinking about something and would like to know if it’s possible to create vectors populated with random numbers. I have only started thinking about it so don’t throw a stone at me if it’s so obvious.

In the attached mcad 15 sheet, I have an equation which is the sum of j-values (j=3 in my example)

Is there a way of generating the values in the vectors in a random way so that the vector length is changed by the user? For example I may want a 1^st pass with j=10, then j=20 and maybe j=100

The constraint is that for the vector fnv: f1 < f2 <f3<…<fj

Would this be better set-up as a MonteCarlo problem using mcad buil-in function

Thanks in advance