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.
(binomial(25, 6)+binomial(5, 1)*binomial(25, 5)+binomial(5, 2)*binomial(25, 4))/(binomial(30,6))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random