Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Sum[binomial(30,k)*(1/6)^k *(5/6)^(30-k) , {k, n, 30}] where n=3
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random