Attached is Rick’s spreadsheet with infant mortality plotted vertically
against the reciprocal of income (times 10^5). The plot shows infant
mortality (Y), 100000/income (X’), and the value of Y’ from the
regression equation (which plots as nonlinear because X’ is
nonlinear).
Scroll down to see the graphic plot of the data below the numerical
cells.
The correlation of infant mortality with reciprocal income is 0.080. The
percent error of prediction appears to be fairly uniform over the whole
range – I didn’t do any calculations on that. Now all the predictions
are physically meaningful.
-----Original Message----- From: Control Systems Group Network (CSGnet) [mailto:CSGNET@LISTSERV.UIUC.EDU] ** On Behalf Of** Bill Powers Sent: Sunday, July 22, 2007 12:08 AM To:
CSGNET@LISTSERV.UIUC.EDU Subject: Re: Infant Mortality
[From Bill Powers (2007.07.21.2145 MDT)]
Attached is Rick’s spreadsheet with infant mortality plotted vertically against the reciprocal of income (times 10^5). The plot shows infant mortality (Y), 100000/income (X’), and the value of Y’ from the regression equation (which plots as nonlinear because X’ is nonlinear).
Scroll down to see the graphic plot of the data below the numerical cells.
The correlation of infant mortality with reciprocal income is 0.080. The percent error of prediction appears to be fairly uniform over the whole range – I didn’t do any calculations on that. Now all the predictions are physically meaningful.
Best,
Bill P.
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