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".
Return the 3n+1 sequence for n
Swap the input arguments
Matrix indexing with two vectors of indices
Sum the numbers on the main diagonal
03 - Matrix Variables 1
Area of polygon
A shooting competition
Geometrical meaning of determinant
Simple polynomial evaluation
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