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The expected life span of people in a country for certain birth years is given in the table. Complete parts (a)-(c). | Click to see the data table. a) Find a logistic function to model the data, with x equal to how many years after 1900 the birth year is. 1+ (Use integers or decimals for any numbers in the expression. Round to three decimal places as needed. ) b) Estimate the expected life span of a person born in the country in 1959 and a person born in 2009. The expected life span of a person born in the country in 1959 isO (Type an integer or a decimal rounded to one decimal place as needed.) The expected life span of a person born in the country in 2009 is (Type an integer or a decimal rounded to one decimal place as needed.) c) Find an upper limit for a person's expected life span in the country, according to this model. ] (Type an integer or a decimal rounded to one decimal place as needed.)

The expected life span of people in a country for certain birth years is given in the table. Complete parts (a)-(c). | Click to see the data table. a) Find a logistic function to model the data, with x equal to how many years after 1900 the birth year is. 1+ (Use integers or decimals for any numbers in the expression. Round to three decimal places as needed. ) b) Estimate the expected life span of a person born in the country in 1959 and a person born in 2009. The expected life span of a person born in the country in 1959 isO (Type an integer or a decimal rounded to one decimal place as needed.) The expected life span of a person born in the country in 2009 is (Type an integer or a decimal rounded to one decimal place as needed.) c) Find an upper limit for a person's expected life span in the country, according to this model. ] (Type an integer or a decimal rounded to one decimal place as needed.)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The expected life span of people in a country for certain birth years is given in the table. Complete parts (a)-(c). | Click to see the data table. a) Find a logistic function to model the data, with x equal to how many years after 1900 the birth year is. y = 1+ (Use integers or decimals for any numbers in the expression. Round to three decimal places as needed. ) b) Estimate the expected life span of a person born in the country in 1959 and a person born in 2009. The expected life span of a person born in the country in 1959 isO (Type an integer or a decimal rounded to one decimal place as needed.) The expected life span of a person born in the country in 2009 isO (Type an integer or a decimal rounded to one decimal place as needed.) c) Find an upper limit for a person's expected life span in the country, according to this model. ] (Type an integer or a decimal rounded to one decimal place as needed.) Life Span (years) 53.1 Life Span e (years) 72.8 Birth Birth Year Year 1920 1994 1930 57.9 1996 73.0 1940 62.0 1998 73.1 1950 65.3 1999 73.2 1960 67.8 2000 73.3 1970 69.8 2001 73.4 1975 70.6 2002 73.4 1980 71.3 2003 73.5 1987 72.2 2004 73.5 1988 72.3 2005 73.6 1989 72.4 2010 73.9 1990 72.5 2015 74.1 1992 72.6 2020 74.3
Transcribed Image Text:The expected life span of people in a country for certain birth years is given in the table. Complete parts (a)-(c). | Click to see the data table. a) Find a logistic function to model the data, with x equal to how many years after 1900 the birth year is. y = 1+ (Use integers or decimals for any numbers in the expression. Round to three decimal places as needed. ) b) Estimate the expected life span of a person born in the country in 1959 and a person born in 2009. The expected life span of a person born in the country in 1959 isO (Type an integer or a decimal rounded to one decimal place as needed.) The expected life span of a person born in the country in 2009 isO (Type an integer or a decimal rounded to one decimal place as needed.) c) Find an upper limit for a person's expected life span in the country, according to this model. ] (Type an integer or a decimal rounded to one decimal place as needed.) Life Span (years) 53.1 Life Span e (years) 72.8 Birth Birth Year Year 1920 1994 1930 57.9 1996 73.0 1940 62.0 1998 73.1 1950 65.3 1999 73.2 1960 67.8 2000 73.3 1970 69.8 2001 73.4 1975 70.6 2002 73.4 1980 71.3 2003 73.5 1987 72.2 2004 73.5 1988 72.3 2005 73.6 1989 72.4 2010 73.9 1990 72.5 2015 74.1 1992 72.6 2020 74.3
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