A survey asked a group of 51 school children which foods they liked to eat. 30 liked pizza, 12 liked hotdogs, and 8 liked both. 1. Fill in the numbers on the VENN diagram. 2. How many of the children only like pizza? 3. How many of the children liked neither food? Hotdogs Pizza

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Set Theory

Every field in the present world involves a set. The theory of sets was developed by German mathematician Georg Cantor while working on the “problems of trigonometric series”.