HP 10s+ User Manual

21
Example: Calculate , , , n, ,
given the following data:
15, 14, 11, 15, 13, 13, 14, 12
In SD mode:
   (Scl)  (Stat clear)
Each time you press
, the data you have just
entered is stored. The = value shown on the screen
indicates the number of data pairs you hove entered.
14
 11  15 
13   14  12 
Standard deviation of the sample
n-1
= 1.407885953    
Standard deviation of the population
n
= 1.316956719    
Mean ( ) = 13.375    
Number of data points( ) = 8    
Sum of the data values ( ) = 107    
Sum of the squares of the data values
(
2
) = 1445    
To display this result Press these keys
  
  

 

 

 

 
15 
n=
SD
1.
Σx
2
Σx
n
x
xσ
n
xσ
n 1–
xσ
n 1–
xσ
n
x
Σx
Σx
2
n
xσ
xσ
x
n
Σx
Σx

HP 10s+ Specifications

General

Display	LCD
Power Source	Battery
Type	Scientific Calculator
Display Type	LCD
Display Digits	10 + 2 digits
Battery Type	LR44
Number of Batteries	1
Functions	240 functions