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
-
319 Solvers
-
Program an exclusive OR operation with logical operators
751 Solvers
-
Given a matrix, swap the 2nd & 3rd columns
1274 Solvers
-
Sum the numbers on the main diagonal
617 Solvers
-
Sum the real and imaginary parts of a complex number
145 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".