The National Association of Real Estate Sellers has collected these data on a sample of 130 salespeople representing their total commission earnings annually:
| Earnings | Frequency |
| $ 5,000 or less | 5 |
| $ 5,001–$10,000 | 9 |
| $10,001–$15,000 | 11 |
| $15,001–$20,000 | 33 |
| $20,001–$30,000 | 37 |
| $30,001–$40,000 | 19 |
| $40,001–$50,000 | 9 |
| Over $50,000 | 7 |
Construct an ogive that will help you answer these questions.
- (a) About what proportion of the salespeople earns more than $25,000?
- About what does the “middle” salesperson in the sample earn?
- Approximately how much could a real estate salesperson whose performance was about 25 percent from the top expect to earn annually?
Solutions
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