Question

As an application of the "number of days" lost measure of risk discussed in "Scientific View of Risk" consider the following 2015 statistic. Today's life expectancy is well into the 80s. What percentage of life-long smokers die before the age of 70?

Answer 1

The missing options are:

a) 90%

b) 30%

c) 50%

d)about the same number that die in plane crashes.

The correct option is c) 50%

Step-by-step explanation:

According to 2015 statistics, fifty percent of lifelong smokers die before the age of 70, living 10 or 13 years less than a non-smoker. The most common causes are cancer in areas of the respiratory pathway, such as the mouth, the lungs or throat, and heart diseases.