Discrete Structures 2
Exercise 5
Answer the following.
1. A certain college class has 40 students. All the students in the class are known to be from 17 through
34 years of age. You want to make a bet that the class contains at least x students of the same age.
How large can you make x and yet be sure to win your bet?
2. List all unordered selections of four elements from the set {a, b, c, d, e}. Deduce the value of (5).
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