Question: In a city of 5000 adults, 2000 live in private homes while the remaining live in apartment buildings. Of those living in private homes, 240 are upper income, 1200 are middle income and 560 are lower income. Of those living in apartment buildings, 900 are upper income, 600 are middle income and 1500 are lower income. Set up a cross classification table for type of dwelling unit and income status, to find the probability that a person chosen at random:

[A] lives in a private home and is upper income

[B] lives in an apartment building or is lower income

[C] is middle income

[D] lives in an apartment building

[E] is middle income, if it is known that he lives in an apartment building