He interprets the wand selection as a random process so he can compare the probabilities of different outcomes. The wood types available are holly, elm, maple, and wenge, wenge, wenge? The core materials on offer are phoenix feather, unicorn hair, dragon scale, raven feather, and thestral tail. All right. Based on the sample space of possible outcomes listed below, what is more likely? And so we see here we have four different types of woods for the wand, and then each of those could be combined with five different types of core. Phoenix feather, unicorn hair, dragon scale, raven feather, and thestral tail.