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(Σxy)
Sum of products of the x-data and y-data
(Σx
3
)
Sum of cubes of the x-data
(Σx
2
y)
Sum of (x-data squares × y-data)
(Σx
4
)
Sum of biquadrate of the x-data
Variable Sub-menu ( (Variable))
Select this menu
item:
When you want to obtain this:
(x) Mean of the x-data
(σ
2
x
)
Population variance of the x-data
(σ
x
)
Population standard deviation of the x-data
(s
2
x
) Sample variance of the x-data
(s
x
) Sample standard deviation of the x-data
(n)
Number of items
(y) Mean of the y-data
(σ
2
y
)
Population variance of the y-data
(σ
y
)
Population standard deviation of the y-data
(s
2
y
) Sample variance of the y-data
(s
y
) Sample standard deviation of the y-data
Min/Max Sub-menu ( (Min/Max))
73
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