Friendships (Continued) 2 points possible (graded) With the setup as in the problem above, we say a group of four people is "interesting", if there are at most five pairs who are friends. Assume that each pair of people are friends, independent of every other pair, with probability 1/2. Let N be the number of pairs that are friends in this group. - What distribution does N follow? - What is the probability that a randomly chosen group of four people is "interesting"? (Enter your answer as a fraction (recommended) or enter as a decimal accurate to nearest 0.001.) P(Ng5)=