SOLUTION: Among 200 patients at a Tikur Anbessa hospital. 40 of them are cardiac patients, 100 of them are cancer, patients and 60 of them are diabetic patients. The hospital wants to give

Algebra ->  Statistics  -> Binomial-probability -> SOLUTION: Among 200 patients at a Tikur Anbessa hospital. 40 of them are cardiac patients, 100 of them are cancer, patients and 60 of them are diabetic patients. The hospital wants to give      Log On


   

Question 1198389: Among 200 patients at a Tikur Anbessa hospital. 40 of them are
cardiac patients, 100 of them are cancer, patients and 60 of
them are diabetic patients. The hospital wants to give free
medical service for some patients. ♦ A) What is the probability that 5 cardiac and 10 cancer patients
are given free medical treatment
Found 2 solutions by ewatrrr, ikleyn:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
200 patients: 40(cardiac) , 100( cancer), 60(diabetic)
15 are chosen for free medical treatment:
P(5Cardiaac & 10cancer) = %28%2840C5%29%28100C10%29%29%2F%28200C15%29

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

As it is worded, printed and presented in the post, the problem is posed incorrectly.

To be correct, the problem must say in the description,
that the number of free services that they want to provide is 15.

Without it, the problem can not be solved properly.


It is not for the first time this problem comes to the forum in this form,
and I just reacted on it in similar way earlier.