— 19 —
Input Data. A u 55 } 
54 
} 51 } 
55 
} 53 } } 
54 
} 52 } 
Sample standard deviatio
n
A q 
Population standard deviation
A p 
Arithmetic mean A ` 
Number of data A r 
Sum of  values A o 
Sum of squares of values A a 
•  } } inputs the same data twice (as above).
•You can also input multiple entries of the same data using
-. To   input the data 110 ten times, for example, press
110 
-10 }.
• The above results can be obtained in any order, and not
necessarily that shown above.
•To delete data you have just input, press 
A [.
1.407885953
SD
1.316956719
SD
8.
SD
427.
SD
22805.
SD
53.375
SD
52.
SD