Recent content by ecesiu

p=q=0.5 because the coin is fair where p is the probability of getting head , q is the probability of getting tail

firest i found the density of x which is Bernoulli trial : PK=Cn(10,k) * p^k * q^(10-k) , k= 0,1,...,10 the distribution is a staircase of the density which i sketch , the book solution is here :

which information you mean?

i have this question i do find the distribution like this figure : and i plot the y like this: now i want to find the distribution of y i tried to take the distribution for each interval in Fx(x) like this : but the solution in the book said : who is wrong me or the book...

Homework Statement Homework Equations My solution for part B is different than the manual solution , here is the Manual solution : The Attempt at a Solution and this is my solution :

thank you very much Ray Vickson , hgfalling it really nice idea to take the complement thanks

Homework Statement a fish tank contains 12 male and 12 female guppies what is the probability that at least half of male will be selected if 15 fish are randomly selected and removed from the tank?? Homework Equations The Attempt at a Solution i am tried to find the probability as...