Casio fx-9750G PLUS - Manual (Page 335)

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• This calculator performs the above calculation using the following:
∞ = 1E99, –∞ = –1E99
u u u u u
Inverse cumulative normal distribution
Inverse cumulative normal distribution calculates a value that represents the
location within a normal distribution for a specific cumulative probability.
Specify the probability and use this formula to obtain the integration interval.
Perform the following key operations from the statistical data list.
5 (DIST)
1 (NORM)
3 (InvN)
Data is specified using parameter specification. The following shows the meaning
of each item.
Area ................ probability value (0 < Area < 1)
σ ..................... standard deviation (σ
> 0)
µ ..................... mean
Execute .......... executes a calculation
Example To calculate inverse cumulative normal distribution for a
specific parameter value
For this example, we will determine inverse cumulative normal
distribution when probability value = 0.691462,
σ = 2 and µ = 35.
a.gjbegcw
cw
dfw
1 (CALC)
x ..................... inverse cumulative normal distribution (upper boundary of
integration interval)
Distribution
18 - 8
Upper boundary of
integration interval
α
= ?
f (x)dx = p
−∞
∫