2026-327

 In a random network with \( N \gg 1 \) and average degree \( \langle k \rangle = 3 \), what is the expected fraction of nodes with degree 0 or 1?

1. \( 1 - e^{-3} \)
2. \( 4 e^{-3} \)
3. \( 3 e^{-3} \)
4. \( 2 e^{-3} \)
5. None of the above

Original idea by: Antonio De Cesare Del Nero