MCQOPTIONS
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MCQOPTIONS
| 1. |
A chest physician observed that the distribution of forced expiratory volume(FEV) in 300 smokers had a median value of 2.5 litres with the first and third quartiles being 1.5 and 4.5 litres respectively.Based on this data now many persons in the sample are expected to have a FEV between 1.5 and 4.5 litres - |
| A. | 75 |
| B. | 150 |
| C. | 225 |
| D. | 300 |
| Answer» C. 225 | |