Suppose that in a particular Finite course, 4/7 of students plan on majoring in math, 25/42 plan on majoring in communications, and 2/7 plan on double majoring in math and communications. How many want to major in exactly one of communications or math?

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A: Hi there, Since you've posted multiple questions, we'll solve the first one as per our policy.…

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Q: How many strings of three decimal digits

A: Strings of three decimal digits:

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Q: 1. Show that if seven integers are selected from the first 10 positive integers, there must be at…

A: We can solve the following question by pigeonhole principle

Q: A computer programming team has 9 members. (a) How many ways can a group of five be chosen to work…

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Q: Suppose that in a particular Finite course, 4/7 of student plan on majoring in math, 25/42 plan on…

A: Given Information- 4/7 of student plan on majoring in Math, 25/42 plan on majoring in…

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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”.