Comment: The use of a single unmanned aerial vehicle (UAV) for a complex activity is better than a swarm of UAVs.

1. Let X denotes the number of times a certain numerical control machine will malfunction: 1,2 , or 3 times on any given day. Let Y denote the number of times a technician is called on an emergency call. Their joint probability distribution is given as (a) Evaluate the marginal distribution of X. (b) Evaluate the marginal distribution of Y. (c) Find P(Y=3/X=2) 2. Suppose that X and Y have the following joint probability distribution: Find: a. covariance X and Y b. P[(X,Y)/A], where A is the region given by {(x,y)x+y5}