to meet the demand for water in a region it is decicded that a
dam should bu built in a river.the capacity of the dam is 3
units.the probability distribution of the number of units of water
that flow into the dam during each week is given by p0=1/8, p1=1/4,
p2=1/2 and p3=1/8(i.e. pi=probability that i units will flow into
the dam during a week).If the supply of water by the river exceeds
the remaining capacity of the dam,the excess...