Conditional Probabilityeasy
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An art class has two drawers. Drawer 1 contains 5 charcoal pencils and 3 graphite pencils. Drawer 2 contains 2 charcoal pencils and 6 graphite pencils. A drawer is chosen at random with equal probability, and one pencil is drawn. Given that the drawn pencil is graphite, what is the probability it came from Drawer 1?
An art class has two drawers. Drawer 1 contains 5 charcoal pencils and 3 graphite pencils. Drawer 2 contains 2 charcoal pencils and 6 graphite pencils. A drawer is chosen at random with equal probability, and one pencil is drawn. Given that the drawn pencil is graphite, what is the probability it came from Drawer 1?