Security X has expected return of 9% and standard deviation of 18%. Security Y has expected return of 12% and standard deviation of 21%. If the two securities have a correlation coefficient of -0.4, what is their covariance

Max fischer is a beekeeper. his annual group insurance costs 11,700. his employer pays 60% of the cost. how much does max pay semimonthly for it?

Walmart’s scm system walmart is famous for its low prices, and you may have experienced its low prices first-hand. at least, you have probably seen its motto, “always low prices— always.” one of the biggest reasons walmart is able to sell at prices lower than almost everyone else is that it has a superefficient supply chain. its it-enabled supply chain management system is the envy of the industry because it drives excess time and unnecessary costs out of the supply chain. so, because walmart can buy low, it sells low. as a matter of fact, if your company wants to sell items to walmart for it to sell in its stores, you will have to do business with it electronically. if your company can’t do that, walmart won’t buy anything from you. log on to walmart’s web site (), search for supplier information, and find out what walmart’s requirements are for its suppliers to do business with it electronically. prepare a brief summary of its requirements for presentation in clas

Alaska king crab fishing in the 1960s and '70s was a dangerous but rich fishery. boats from as far away as california and japan braved the treacherous gulf of alaska crossing to reach the abundant king crab beds in cook inlet and bristol bay. suddenly, in the early 1980s, the fishery crashed due to over fishing. all crabbing in those areas ended. to this day, there is no crabbing in bristol bay or cook inlet. a. how would an economist explain the decline of the alaska king crab fishery