Question

I’d like to have a random number like this:(in C#)

Random r = new Random();
r.next (0,10)

BUT it’s important to the random number be more near 8,(or it be usually big),
I mean if we use a for:

for (int i =0; i<...;i++)
{
  write: r.next (0,10)
}

the result be like this;

8 7 6 9 1 0 5 3 2
2 3 8 9 7 7 6 2 3
8 8 9 7 2 8 2 8 4
3

Answer 1

You need a distribution function that takes a number between 0 and 1 and converts it to a number in the range you want, with a higher weight on a specific number. You could create such a function with trigonometric functions (sin, cos, …), exponential, or maybe a polynomial.

UPDATE: Have a look at this page for more information on probability distribution