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 k=55..70 of binomial(100,k)*(0.6)^k*(0.4)^(100-k)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random