(2b) How to construct a second sinusoidal regression on the same screen using the Casio
fx-9860GII
Philadelphia
Date
Day
Number
HH:MM
Min.
Jan. 1 1 9:23 563
Feb. 1 32 10:11 611
March 1 60 11:19 679
Apr. 1 91 12:41 761
May 1 121 13:56 836
June 1 152 14:46 886
July 1 182 14:57 897
Aug. 1 213 14:15 855
Sept. 1 244 13:03 783
Oct. 1 274 11:46 706
Nov. 1 305 10:28 628
Dec. 1 335 9:33 573
Source: U.S. Naval Observatory,
www.usno.navy.mil
1. Follow the same steps used for the Houston daylight
problem two sections above. In Step 6, after copying
the equation, move down to Y2 before pressing
l so as to not erase the first equation.
2. From the main menu, highlight the GRAPH icon
and press l.
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