MiLAN M 240 Guia Del Usuario página 91

The MILAN M-240 calculator allows you to per-
form statistical calculations on raw data.
Once data is stored in memory, several operations
can be carried out in SD mode. These operations
are reached through two menus (
·
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-
-
·
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Once you reach any of these two menus, you
should press the number key (
that corresponds to the function you want to
compute, followed by the key
Statistical Calculus
key operation
sum of
squares of
values
sum of
values
number of
samples
( )
sum of squares of values
sum of values
number of samples
( )
mean
population standard deviation
sample standard deviation
formula
(
å
2
x
i
"
i
å
x
i
"
i
n
36
and
, ,
.
)
):
)