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Set-Theory
November 16, 2023
Database-Management-System
November 16, 2023
Set-Theory
November 16, 2023
Database-Management-System
November 16, 2023

Set-Theory

Question 2

The number of subsets {1, 2, … n} with odd cardinality is __________.

A
2n-1
Question 2 Explanation: 
Total no. of subsets with n elements is 2n.
And so, no. of subsets with odd cardinality is half of total no. of subsets = 2n /n = 2n-1
Correct Answer: A
Question 2 Explanation: 
Total no. of subsets with n elements is 2n.
And so, no. of subsets with odd cardinality is half of total no. of subsets = 2n /n = 2n-1

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