Suppose that in a particular class of 200 students, 31 of them plan on majoring in math, 27 plan on majoring in history, and 18 plan on double majoring in math and history. How many want to major in exactly one of psychology or math? (Hint: Look at the Venn diagram and figure out which regions correspond to “exactly one”; do not try and write the set down!)

Suppose that in a particular class of 200 students, 31 of them plan on majoring in math, 27 plan on majoring in history, and 18 plan on double majoring in math and history. How many want to major in exactly one of psychology or math? (Hint: Look at the Venn diagram and figure out which regions correspond to “exactly one”; do not try and write the set down!)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

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”.

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Suppose that in a particular class of 200 students, 31 of them plan on majoring in math, 27 plan on
majoring in history, and 18 plan on double majoring in math and history. How many want to major in
exactly one of psychology or math? (Hint: Look at the Venn diagram and figure out which regions
correspond to “exactly one”; do not try and write the set down!)

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