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The table below shows the life expectancy for an individual born in the United S

ID: 3054479 • Letter: T

Question

The table below shows the life expectancy for an individual born in the United States in certain years. Year of Birth Life Expectancy 1930 1940 1950 1965 1973 59.7 62.9 70.2 69.7 71.4 74.5 75 75.7 87 1992 2010 Part (a) D Part (b) Part (c) Part (d) Part (e) Find the estimated life expectancy for an individual born in 1950 and for one born in 2010. (Round your answers to one decimal place.) Birthdate in 1950:70.2 Birthdate in 2010: 78.7 D Part (f) D Part (9) a Part th D Part (0) ? Part (1) Using the least squares line, find the estimated life expectancy for an individual bom in 1880. (Round your answer to one decimal place.)

Explanation / Answer

For the given table the least square line is:

Y = -377.2431 + 0.22748x

Therefore, the expected life expectancy for an individual born is 1950 is:

Y = -377.2431 + 0.22748*(1950) = 66.3

the expected life expectancy for an individual born is 2010 is:

Y = -377.2431 + 0.22748*(2010) = 79.9

the expected life expectancy for an individual born is 1880 is:

Y = -377.2431 + 0.22748*(1880) = 50.4

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