Question: Let H represent the event that a customer at a fast-food outlet orders a hamburger, and M the event that a customer orders a milkshake.
Let H represent the event that a customer at a fast-food outlet orders a hamburger, and M the event that a customer orders a milkshake. You know that 60% of all customers order hamburgers, 30% order milkshakes and 15% order both.
Draw a Venn Diagram
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