Distribution of the random discrete variable X with prob- abilities is presented in Table 1, where probabilities p2,p4> 0 and p4is twice as large asp2. Distribution oftherandom discrete variable Y with probabilities is presented in Table 2, where probabilities p1, p4> 0 and p1 is 1.6 times larger than p4. Table 1: X -2 -1 0 1 3 0.1 p2 0.4 p4 0.2 Table 2: Table2 Y -3 0 2 5 6 p P1 0.05 0.1 P4 0.3 Find (a) Variance Var [5XY] and standard deviation ox.