Discover Questions

Consider 2 RVs X and Y both of zero mean. Suppose E[XY]=4, var(X)=9 and var(Y)=16. What is the correlation coefficient? Do you think humans will survive long enough to evolve into something different or will we make ourselves extinct before we have the chance? How does discordant occur? Forces of 99 N [S] and 64 N [E] act on an object of mass 27 kg. What is the acceleration of the object? A bug completes one lap along the edge of a
circular planter of radius 20.8 cm in 11.26 s.How fast was it traveling?Answer in units of cm/s.?