HP HP-20S - Page 60

Calculate the slope and y-intercept of the best straight line fitted to
the data. Also calculate the correlation coefficient.
Keys: Display: Description:
N 0.0000 Clears the statistical
registers.
.05 .0062
075 00941
R 014
125 0146
2 .023 5.0000 Enters the x,y-data.
() 0.1093 Displays the slope.
(]
0.0014
Displays
the
y-inter-
cept. : indicates
another result.
() Grl(=) 0.9890 Displays the correla-
tion coefficient.
Estimate the rate of the reaction when the concentration equals 0.09
moles per liter.
.09 (] 0.0113 Calculates estimate of
y for x=0.09.
What concentration is necessary for the rate to equal 0.0200?
.02 (] 0.1700 Calculates estimate of
x for y=0.02.
0.0000 Clears display and :
annunciator.
58 5: Statistical Calculations