Mathematics, 24.03.2020 21:00 jnsebastian2002

The wood types available are holly, elm, maple, and wenge. The core materials on offer are phoenix feather,
unicorn hair, dragon scale, raven feather, and thestral tail.
Let A be the event that Harry is chosen by a wand made of holly and B be the event that he is chosen by a
wand with a dragon scale core
What is P(A or B), the probability that Harry is chosen by a wand made of holly or a wand with a dragon
scale core?

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