In: Statistics and Probability
A telephone survey conducted in Bowie on a low-interest bank credit card that was offered to 400 households. The responses are as tabled.
| 
 Income  $60,000  | 
 Income > $60,000  | 
|
| 
 Accept offer  | 
 40  | 
 30  | 
| 
 Reject offer  | 
 210  | 
 120  | 
a) Develop a joint probability table and show the marginal probabilities. (1 points)
b) What is the probability of a household whose income exceeds $60,000 and who rejects the offer? (2 points)
C) If income is  $60,000, what is the probability the offer will be accepted? (2 points)
d) If the offer is accepted, what is the probability that income exceeds $60,000? (2 points)