Mathematics B Regents High School Examination - The University Of The State Of New York, 2006 Page 14

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31 A factory is producing and stockpiling metal sheets to be shipped to an
automobile manufacturing plant. The factory ships only when there is
a minimum of 2,050 sheets in stock. The accompanying table shows the
day, x, and the number of sheets in stock, f(x).
Sheets in Stock
Day
(
)
f( x )
( x )
1
860
2
930
3
1000
4
1150
5
1200
6
1360
Write the linear regression equation for this set of data, rounding the
coefficients to four decimal places.
Use this equation to determine the day the sheets will be shipped.
[14]
Math. B – June ’06

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