In case of Discrete Random Variable: E[x]= Σ (x) * P(x) E[√X]= Σ (√x) * P(x) In case of Continuous Random Variable: E[x]= ∫ (x) * f(x) dx E[√X]= ∫ (√x) * f(x) dx Integrate on all values of X solved How to find Expectation of a Random Variable √X in probability
As you only return h, you don’t actually need t. It is also not needed to use randrange — you can achieve the same with random. For the actual counting you can use sum, and the boolean result can be converted to 0 or 1 with int: def prob(times): return sum(int(rd.random() < 0.7) for _ … Read more
You’ll need to generate a random number when A is pressed. EDIT: For example: #include <stdlib.h> if(PressedA){ int random=(rand() % 100); // random is in [0,99] if(random < 15){ command(); } } 3 solved How can I process a command in determined probability in C? [closed]
If K>max(R,G,B) then the problem has no solution. So let’s assume K <= max(R,G,B). If you don’t have any control over which ball gets extracted, you’ll need at most (i.e. this is a lower bound) min(R, (K-1))+min(G, (K-1))+min(B, (K-1))+1 extractions for obvious reasons: extract K-1 red balls (or all red balls if R<K), then extract … Read more