MCQOPTIONS
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MCQOPTIONS
| 1. |
The PEFR of a group of 11 year old girls follow a normal distribution with mean 300 1/min and stard deviation 20 1/min: |
| A. | About 5% of girls have PEFR below 260 1/min. |
| B. | All the PEFR must be less than 340 1/min. |
| C. | About 95% of the girls have PEFR between 260 and 340 1/min. |
| D. | The girls have healthy lungs. |
| Answer» D. The girls have healthy lungs. | |