Explain the role of the commercial banks in a modern economy. Evaluate the argument for and against the commercial banks of Mauritius being more closely controlled. The Moon and Light companies have the following probability distribution of returns: Economic Conditions Probability Returns (%) Calculate: (a) (b) (c) (d) High Growth Normal Growth Slow Growth Stagnation Decline 0.1 0.2 0.4 0.2 0.1 Moon 32 20 14 -5 -10 Light 30 17 6 -12 -16 The return of Moon and Light. The expected covariance of returns of Moon and Light. The correlation of returns between the Moon and Light companies. The standard deviation of an equally weighted portfolio of Moon and Light securities.