... VARIANCEWLWLWLWLWLWL(2,3,12) L10986 5 4(7,11) W1/32/32 /5 3 /5 5/116/11 5/ 116/112 /5 3 /5 1/32/32/91/121/9 5/ 36 5/ 361/91/121/91/362/362/ 45 3/ 45 25/ 39630/396 25/ 39630/3962/ 45 3/ 45 1/362/36Figure ... E(Y )=2. 6.2. VARIANCE OF DISCRETE RANDOM VARIABLES 2611 234 5 600.10.20.30.40 .5 0.622 .5 3 3 .5 44 .5 500 .5 11 .5 2n = 10 n = 100Figure 6.7: Empirical distribution of An.Example ... example, of the 64 people who survive to age 6, 5/ 8 of64 or 40 survive to 16, 5/ 8 of these 40 or 25 survive to 26, and so forth. Of course,he rounded off his figures to the nearest whole person.Clearly,...