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Question
The following probability distribution was subjectively assessed for the number of sales a salesperson would make if he or she made five sales calls in one day.
| Sales | Probability |
| 0 | 0.10 |
| 1 | 0.15 |
| 2 | 0.20 |
| 3 | 0.30 |
| 4 | 0.20 |
| 5 | 0.05 |
When the salesperson makes a sale, there are three possible sales levels: large, medium, and small. The probability of a large sale is 0.20 and the chance of a medium sale is 0.60. The probability on a given day that the salesperson will make one sale and that it is medium is 0.09.
Answer
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