\f(d) 1 pt - Let E denote the total number of edges in the graph. Find the probability mass function (PMF) of E. What type of random variable is it? PE(k): (e) 1 pt - Compute the expected number of edges within this random graph? EE (f) 1 pt - What is the probability that the graph is connected? That is, what is the probability that there exists a path between any two individuals? Pr(Graph connected)