For each of the systems in 4 through 13: a. Find all the critical points (equilibrium solutions). G b. Use an appropriate graphing device to draw a direction field and phase portrait for the system. c. From the plot(s) in part b, determine whether each critical point is asymptotically stable, stable, or unstable, and classify it as to type. d. Describe the basin of attraction for each asymptotically stable critical point.dx/dt = y(2 x y), dy/dt = x y 2xy

4.1-4.4 Sample Spaces and Probability 02/11/16 DEFINITIONS: Probability can be defined as the chance of an event occurring. A probability experiment is a chance process that leads to well-defined results called outcomes. An outcome is the result of a single trail of a probability experiment. A sample space is the set of all possible outcomes in...