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)