Fundamentals of Probability and Statistics for Engineers

Answer: let x 1 x, x 2 x^2 ,andlet

The least-square estimate for is given by Equation (11.49), with

and

Thus

or

Table 11. 5 Population increase, y, with

number of years after 1970, x, for Example 11.7

x 012345

y(%) 1.03 1.32 1.57 1.75 1.83 2.33

358 Fundamentals of Probability and Statistics for Engineers

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