Matheus - MO412

A social media platform is modeled as a network where users adopt a viral challenge if the fraction of their friends already participating exceeds a threshold $\phi = 0.5$. User Ana has $6$ friends, and currently $4$ of them are participating in the challenge. Which statement best describes what happens? a)      Ana will not participate because at least all $6$ friends must participate. b)      Ana will participate because the fraction of participating friends is $\frac{4}{6} \approx 0.67$ which is  greater than the threshold $\phi = 0.5$. c)      Ana will participate only if exactly $3$ friends participate. d)      Ana’s decision is independent of the threshold $\phi$. e)      None of the above. Original idea by: Matheus de Oliveira Saldanha