Casio FX-991W - Number System Calculations; Number System Ranges; Base-n Calculation Examples

• Example; Atmospheric Pressure vs. Temperature
Perform linear regression to de¬
termine the regression formula
terms and correlation coefficient
for the data nearby Next, use the
.regression.formula to estimate at¬
mospheric pressure at 18 V , C and
temperature at 1000 hPa.
Enter REG Mode {Linear Regression)
@@ CO CD...
SM O {Memory Clear)
10 CO 1003 mi 15 CD 1005 ©
20 C D 101 oil] 25 CD 1011 @T}
30 CD 1014(53
{Regression Coefficient A) CD CD S3
(RegressionCoefficients) . @ S O
(Correlation Coefficient f) fc'lEi I r 1 £2
(Atmospheric Pressure at 1 8 °C) 18 CD LD
(Temperature at 1000 hPa).. .1000 CD CD
• Quadratic Regression
• The regression formula for quadratic regression is:
y - A +.Bx +Cx 2 . ■
• Input data using the following key sequence.
<x-data> CD <ry-data> (dt] : :
•Example;
Perform quadratic regression to de¬
termine the regression formula terms
and correlation coefficient for the data
nearby. Next, use the regression for¬
mulate estimate the values for y (es¬
timated value of y) for x> sr 16 and x
(estimated value of*) for .y* •= 20;
* 22 *
Temperature
10*C
Atmospheric
Pressure
" 1003 hPa "
15°C
20°C
1005 hPa
1010 hPa
25°C
1011 hPa
30°C
1014 h Pa