Find
E(t)equalsmtplusb
so that E models the data, where t is the number of years since
1993.
Then use E(t) to make the requested estimate.
The life expectancy for a female in
1993
was
78.8
years, and in
1995,
it was
79.4
years. Estimate the life expectancy in
1999.
Question content area bottom
Part 1
The linear function E(t) that fits the data is
E(t)equals0.3tplus78.8.
(Type integers or decimals. Round to the nearest hundredth as needed.)
Part 2
Use the function part to predict the life expectancy of females in
1999.