an investor holds two stocks each of which can rise r remain unchanged u or 384955

An investor holds two stocks, each of which can rise (R), remain unchanged (U), or decline (D) on any particular day. Let x equal the number of stocks that rise on the particular day. Find A?µx and ?x for the following cases. (a) The probability distribution of x assuming that all outcomes are equally likely. (Round your answers to 3 decimal places. State your answer of A?µx and ? x as reduced fraction.) A?µx = / ? x = / (b) The probability distribution of x assuming that for each stock P(R) = .6, P(U) = .1, and P(D) = .3 and assuming that movements of the two stocks are independent. (Round your answers to 3 decimal places.) A?µx = ?x = c) The probability distribution of x assuming that for the first stock P(R) = .4, P(U) = .2, P(D) = .4 and that for the second stock P(R) = .8, P(U) = .1, P(D) = .1 and assuming that movements of the two stocks are independent. (Round your answers to 3 decimal places.) A?µx = ?x =