[Sy\ : Used to obtain the standard deviation (sj) of the sample of data (y ).
fffy]: Used to obtain the standard deviation (cry) of the population of data
Chang© sign and s tatistica l ca lc u latio n key
fiyQ : Changes the sign of the number displayed from a positive to a negative of
vice versa.
[y7]: When the calculator is set at the statistical calculation mode:
Used to obtain the estimated value of y.
D e cim al p o in t and Degree /R adian/G ra d selectio n key
f*~l: Example 12.3 QD [3D [ZD (3D
0.7 H SD
(2rtF)§RG): Used for calculation of trigonometric, inverse trigonometric and coordi'
nate conversion. The (2ndF| §R§ keys change the angular mode.
>DEG
■>RAD
>GRAD
(Press H §r§ )
Ex. DEG GRAD: Depress the (arf] |drg) keys twice.
"DEG” mode — Entires and answers are in decimal degrees.
” RAD” mode — Entries and answers are in radians.
"GRAD” mode — Entries and answers are in grads. (10Q9 = 90° = — ).
75
To Next Page
Loading...
