HP 10s+ - Expressing Numbers in Engineering Format; Statistics; Standard Deviation-SD

20
•Press
  to display the value of or press 
 to display the value of .
Expressing Numbers in Engineering Format
• Example 1: Change 54321 meters to kilometers
---> 54.321 ✕ 10
3
54321  
(km)
• Example 2: Change 0.01234 grams to milligrams
--->12.34 ✕ 10
-3
0.01234  
(mg)
Statistics
Standard Deviation-SD
In SD and REG modes, the  key acts as the 
key.
Press the
   (Scl)  keys to erase the
statistics memory before you enter data.
Press the following key to input data.
< data>

Input data to calculate ,
2
, , , .
Press
 to select SD mode for statistical calcula-
tions with standard deviations.
SD..............................................................
 
r
θ
x
nx

,
Σx
x
xσ
n
xσ
n 1–