SOLUTION: I need help with this problem. on the basis of data for the years 1913 through 1994, the expected life span of people in a country can be described by the function f(x)=12.602 l

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: I need help with this problem. on the basis of data for the years 1913 through 1994, the expected life span of people in a country can be described by the function f(x)=12.602 l      Log On


   

Question 766494: I need help with this problem.
on the basis of data for the years 1913 through 1994, the expected life span of people in a country can be described by the function f(x)=12.602 ln x + 17.992 years, where x is the number of years from 1909 to the person's birth year. What does this model estimate the life span to be for people born in 1969?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
on the basis of data for the years 1913 through 1994, the expected life span of people in a country can be described by the function f(x)=12.602 ln x + 17.992 years, where x is the number of years from 1909 to the person's birth year. What does this model estimate the life span to be for people born in 1969?
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x = 60
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f(60) = 12.602*ln(60) + 17.992 = 69.59 years
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Cheers,
Stan H.
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