307
• This calculator performs the above calculation using the following:
∞ = 1E99, –∞ = –1E99
uu
uu
uInverse 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
−∞
∫
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