Jessica is concerned that she might have a problem with creepy-crawlies in her home. This year, she thinks she has seen more spiders and cockroaches in her home than normal. In any given week, let X denote the number of spiders that Jessica has had to remove from her home and let Y denote the number of cockroaches that she has had to remove from her home. Suppose that the relationship between X and Y is described by the following joint probability distribution: 3; (Coclo'oaches) 4 7 15 2 0.12 0.11 0.04 :1: (Spiders) 4 0.18 0.1 0.11 5 0.02 0.15 0.17 Calculate the expected value of YT_4. Do not include any units in your