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".
Solve the Sudoku Row
MATCH THE STRINGS (2 CHAR) very easy
Create an anti-identity matrix
Finding an element in a vector
Compute LOG(1+X) in natural log
Probabilities - More brains than luck
Area of polygon
Simple polynomial evaluation
Probabilities - Balls and urns - 02
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