The sum of $k$ consecutive and positive integers in a sequence is $S$. If $k$ is between 1 and 100, inclusive, what is the probability that $\frac{S}{k}$ results in a value that is part of the sequence? 0.25 0.40 0.50 0.60 0.75
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.., n+(k-1). Their sum is S = k*n + k(k-1)/2. Show more…
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