Olympia LCD?8110, User Manual

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14
Statistical Calculations
Note!
Use the key to activate SD mode to complete statistical
calculations using standard deviation.
SD:
Standard Deviation (SD mode)
l
Data input always starts with to clear statistical memory.
l
Input data is used to calculate values for
b
,
a
,
i
,
s
,
n
,
o
which you can recall using the key
operations noted nearby.
Example 1.: Calculate
o
,
n
,
s
,
i
,
a
,
b
for the following data:
55, 54, 51, 55, 53, 53, 54, 52
Memory Clear:
55 54 51 55
53 54 52
(Sample Standard Deviation
o
)
(Population Standard Deviation
n
)
(Arithmetic mean
s
)
(No. of entries
i
)
(Sum of values
a
)
(Sum of the squares of the values
b
)
Precautionary measures when entering data
l
inputs the same data twice.
l
You can also input multiple entries of the same data using .
To input the data 110 ten times, for example, press 110 10
.
l
The above results can be obtained in any order, and not necessarily
that shown above.
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To delete data you have just input, press .
52.
SD .
........
1.407885953
1.316956719
53.375
8.
427.
22805.