A recent study of how Americans get to work revealed the following data:
|
urban |
rural |
total |
| automobile |
400 |
200 |
600 |
| public trnasport |
50 |
20 |
70 |
| total |
450 |
220 |
670 |
If a worker is selected at random, what is the possibility that the worker is:
a. Rural worker?
b. Uses public transport?
c. Is rural worker or uses public transport?
d. Is rural worker, given that he or she uses public transport.?
e. Uses public transport, given that he or she is an urban worker?