OK, so I'm new to Hidden Power breeding, I want an HP Ice Jolteon, so I checked the Guide on Smogon
http://www.smogon.com/forums/showthread.php?t=20649
I found this
x/x/x/x/x/31 + x/x/x/x/x/x -> x/x/x/x/x/31 = 26.5625% = 1:4
I am assuming that this means when I breed a female Eevee with a...