The urn contains B blue balls and R red balls. Each trial consists of drawing one random ball from the urn and observing its color. Then the ball is discarded.
What is the probability that, after N trials, the number of red balls is K?
Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers23
Suggested Problems
-
2012 Solvers
-
Solve the set of simultaneous linear equations
512 Solvers
-
Output any real number that is neither positive nor negative
411 Solvers
-
Determine the number of odd integers in a vector
855 Solvers
-
Find the diagonal of the square of side L
89 Solvers
More from this Author11
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Poorly stated question, as it is ambiguous as to whether it is asking for the number of red balls that have been observed or the number that remain in the urn. Oh, "discarded" is spelled with a d. That much I can fix.
Agree with John D'Errico that the Problem Statement is ambiguous. For the record, based on case 5 of the Test Suite, it must be the _observed_ number of red balls that is to be computed.