Generate Random Boolean Probability

Question

I only know how I can generate a random boolean value (true/false). The default probability is 50:50

But how can I generate a true false value with my own probability? Let's say it returns true with a probability of 40:60 or 20:80 etc...

Answer 1

Well, one way is Random.Next(100) <= 20 ? true : false, using the integer value of NextInt to force your own probability. I can't speak to the true 'randomness' of this method though.

More detailed example:

Random gen = new Random();
int prob = gen.Next(100);
return prob <= 20;