(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I am having trouble reading this notation

[tex]\sum[/tex] (i/k)

The sum is from i=0 to n

I wasn't sure how to write the combination of i,k on the computer so I just wrote it as i/k.

2. Relevant equations

When I say combination I am talking about this formula n!/(k!(n-k)!)

3. The attempt at a solution

Is this just (0/k)+(1/k)+(2/k)...(n/k)

I am sure I am interpeting it wrong but If I am not what do you do for situations where n is less than k because when you do the combination you get n!/(k!(n-k)!), and I don't think it is possible to do a negative factorial.

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# Homework Help: Combination and summation notation.

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