Question: Problem 2: Rumor Game A simplified model for the spread of a rumor goes this way: There are N=20 people in a group of friends,

Problem 2: Rumor Game

A simplified model for the spread of a rumor goes this way: There are N=20 people in a group of friends, of which some have heard of the rumor and the others have not. During any single period of time, two persons are selected at random from the group and assumed to interact. If one of these persons has heard the rumor and the other has not, then with a probability 0.15, the rumor is transmitted. Assuming that this process begins at time t=0 with a single person knowing the rumor and the first interaction occurs at time t=1, run the system for 200 times to find the following quantities:

I don't want a solution, I just want to understand what does it mean that " with a probability 0.15 the rumor is transmitted " ?

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