I am writing a program where I put different students in different classrooms. I'm having some trouble figuring out how to use probabilities in C#, and programming in general. I want it to be a 5% probability to become a student in Alpha, 10& for Omega & 60% for Nightwalkers. I don't understand what numbers to put in.My method right now:
public string AssignClassroom()
{
int rand = random.Next(0, 100);
{
if (rand < 5) // or >95%?
{
student.Classroom = "Alpha";
}
if (rand < 10) // or >90?
{
student.Classroom = "Omega";
}
if (rand < 60) // or >40?
{
student.Classroom = "Nightwalkers";
}
}
}
CodePudding user response:
You should add up figures in if
s:
if (rand < 5) {
student.Classroom = "Alpha";
}
else if (rand < 10 5)
{
student.Classroom = "Omega";
}
else if (rand < 60 10 5)
{
student.Classroom = "Nightwalkers";
}
Note, that 5, 10, 60
are differencies:
0 .. 5 .. 15 .. 75
| 5 | | | -> 5% top students go to the 1st class
| 10 | | -> 10% next go to the 2nd
| 60 | -> 60% goes to the 3d