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Student Support Forum: 'Erroneous simplification' topicStudent Support Forum > General > "Erroneous simplification"

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07/15/13 03:10am

In attached notebook I'm trying to simplify the sum

Sum[Binomial[i, r] Binomial[k, i] (p)^i (1 - p)^(k - i), {i, 0, k}]

But then, when I try to evaluate the result of simplification, it differs from the result of direct sum evaluation.

Is it a bug? Or maybe I'm doing someting wrong?

Attachment: bug.nb, URL: ,
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