Concept explainers
Forced expiratory volume (FEV) is an index of pulmonary
In comparably aged currently smoking men FEV is normally distributed, with mean = 3.5 L and standard deviation = 0.6 L.
Some people are not functionally impaired now, but their pulmonary function usually declines with age and they eventually will be functionally impaired. Assume that the decline in FEV over n years is normally distributed, with mean = 0.03n L and standard deviation = 0.02n L.
What is the probability that a 45-year-old man with an FEV of 4.0 L will be functionally impaired by age 75?
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Fundamentals of Biostatistics
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill