<PRE><B>Question 220649</B>
Write an equation that models the number of active clusters as a function of the number of years since 1990 
Year 1992 1993 1994 1995 1996 1997 1998 1999 2000
Active clusters 20 28 34 40 42 48 52 56 63
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I paired 2 with 20, 3 with 28, etc
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I ran a linear regression program on the data and got the following:
y = 5x + 12.56
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You might also run a quadratic and/or a cubit regression program
on the data to see what they look like.
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Cheers,
Stan H.</PRE>