Harry Potter is at olive Anders MoD shop. As we all know the one must use the wizard so Harry cannot make the choice himself. He interprets the wand selection as a random process so he can determine the probabilities of different outcomes. The wood tops available are Holly, Elm, Maple comma and whinge. The court materials on offer are Phoenix feather, Unicorn hair, dragon scale, Raven feather comma and thestral tail . Let a be the event that Harry is chosen by the wine made of Holly and BB the event that he chosen just leaving work Buy a one with a dragon scale core. What is P (A or B), the probability that Harry is chosen by the one made of holy aura wind with a dragon scale core