Probably of numbers in a bag

Probability theory and statistics

Probably of numbers in a bag

Postby Guest » Thu Jun 06, 2019 12:17 pm

I have 3 bags, all which contains the numbers 1-5 inclusive.
What is the probability that, after choosing 2 numbers from each bag, the sum of all numbers is more than 26? The first number is NOT returned to it's respective bag before the 2nd number is drawn.


I can work out the total number of combinations by doing 3 * nCr(5,2) which equals 30 possible combinations, but I want to know how many of those combinations sums is above 26.
Thanks in advance.
Guest
 

Re: Probably of numbers in a bag

Postby Guest » Thu Jun 06, 2019 12:55 pm

**CORRECTION: total combinations is actually [tex]{5 \choose 2}[/tex] * [tex]{5 \choose 2}[/tex] * [tex]{5 \choose 2}[/tex] = 1000
Also worth nothing the size of numbers im dealing with goes into the 100s, so just working out all possible combinations is not feasible.
Guest
 


Return to Probabilities and Statistics



Who is online

Users browsing this forum: No registered users and 2 guests