Hp 10s Scientific Calculator User Manual download pdf (Page 24)

Statistics

■ Standard Deviation-SD

Press H to select SD mode for statistical

calculations with standard deviations.

SD.........................................................................................H H

B In SD and REG modes, the @ key acts as the key.

B Press the g ^ (Scl) B keys to erase the

statistics memory before you enter data.

B Press the following key to input data.

B Input data to calculate n ,'S.x, , x , xo n ,

X o n-i.

To display this result

Press these keys

IshIftI |mI| m

~Sx

jSHiFTl M

IsiiiFTl |M| rri

IshWI |Twi| rn

xo n

1^ |s^ [T1

XO n-l 1^ islil

• Example: Calculate xo n-i, xo n, x , n,

given the following data:

15,14,11,15,13,13,14,12

In SD mode :

] m (Scl) I

(Stat clear]

i5[pg 1.

Each time you press [^, the data you have just

entered is stored. The n= value shown on the screen

indicates the number of data pairs you have entered.

14 [Din 1 1 [Pin 15 fpin

1 3 |dt| [dtI 14 [dtI 1 2 |pt1

Standard deviation of the sample

(xon-i)= 1.407885953 HHSB

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 43 44

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Hp 10s Scientific Calculator User Manual Page 24