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".
Find the numeric mean of the prime numbers in a matrix.
Create a square matrix of multiples
Return area of square
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Non trivial identities - differentiation
A shooting competition
Find the diagonal of the square of side L
Non trivial identities - flipping
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