planning the landscaping for your front yard, you select tulip bulbs at a
nursery. Your plan is to plant 11 red and 8 white tulips in one flower bed and
to plant 2 purple tulips in a small pot near your door. On the way home from
the nursery, the bulbs roll out of their bags in the trunk and are mixed up.
You cannot predict the color of the tulips just by looking at the bulbs.
Suppose you select 2 bulbs to plant in the pot.
Find the probability of selecting a red and a white bulb