- #1
Kariege
- 15
- 0
Hi,
I'm currently having a lot of trouble with this probability problem. For example:
Suppose there are 5 balls in a bag with number 1,2,3,4,5. I pick a ball at random 20 times (with replacement).
Lets say the probability of each ball being picked is:
P(1) = 0.5
P(2) = 0.15
P(3) = 0.1
P(4) = 0.2
P(5) = 0.05
After I pick the ball 20 times, I sum it up. The sum is denoted as T.
I want to find the probability that T>=50. How do I go about doing this?
I'm not entirely sure if this actually links to sample space. Sample space is just something that I have in my mind. I've seen sample space where there are 2 variables, but what about more than 2?
Any help would be appreciated
Thanks
I'm currently having a lot of trouble with this probability problem. For example:
Suppose there are 5 balls in a bag with number 1,2,3,4,5. I pick a ball at random 20 times (with replacement).
Lets say the probability of each ball being picked is:
P(1) = 0.5
P(2) = 0.15
P(3) = 0.1
P(4) = 0.2
P(5) = 0.05
After I pick the ball 20 times, I sum it up. The sum is denoted as T.
I want to find the probability that T>=50. How do I go about doing this?
I'm not entirely sure if this actually links to sample space. Sample space is just something that I have in my mind. I've seen sample space where there are 2 variables, but what about more than 2?
Any help would be appreciated
Thanks