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 placed back in the urn.
What is the probability that, after N trials, the number of times a red ball is observed is K?
Solution Stats
Problem Comments
1 Comment
Solution Comments
Show comments
Loading...
Problem Recent Solvers27
Suggested Problems
-
996 Solvers
-
369 Solvers
-
Given a matrix, swap the 2nd & 3rd columns
1270 Solvers
-
Find the maximum two numbers of every column of a matrix
232 Solvers
-
556 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!
The problem is ambiguously worded. The "number of red balls" is a constant, R, so it is unlikely to ever coincide with K (irrespective of the value of N). What should be found here is
"the probability that, after N trials, the number of observations of red balls is K".