100 Students want to enter a university. Each student has a 4% chance of entering (they all enter independently) What is the chance of atleast 3 entering the university?
The answer to this question is 0.7678
I just dont know how to get to this. I tried doing this:
Each student has a 96% of not entering, the chances of 3 students not entering therefore should be (0.96)^3. Now if i want the chances of atleast 3 entering i do 1 - (0.96)^3 = 0.115
Can someone explain me what i did wrong?