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1. |
In an hospital in Boston (USA), the number of heart patients who visited cardiologist in 17 days are 11, 12, 15, 18, 17, 12, 14, 15, 16, 17, 18, 13, 19, 14, 18, 13, 20 |
A. | 15 |
B. | 14 |
C. | 16 |
D. | 15.5 |
Answer» B. 14 | |