Dorothy's pastries are freshly baked and sold at several spe-

cialty shops throughout Perth. When they are a day old, they

must be sold at reduced prices. Daily demand is distributed

as follows:

Demand Probability

500.25

1500.50

2000.25

Each pastry sells for $1.00 and costs $0.60 to make. Each one

not sold at the end of the day can be sold the next day for

$0.30 as day-old merchandise. How many pastries should be

baked each day?