Casio fx-9750G PLUS - Manual (Page 334)

306
Perform the following key operations to display a graph.
J
ccc
6 (DRAW)
u u u u u Normal distribution probability
Normal distribution probability calculates the probability of normal distribution data
falling between two specific values.
πσ 2
p = 1 e
–
dx
2 2 σ
(x – µ ) 2 µ
a
b
∫
a : lower boundary
b : upper boundary
Perform the following key operations from the statistical data list.
5 (DIST)
1 (NORM)
2 (Ncd)
Data is specified using parameter specification. The following shows the meaning
of each item.
Lower ............. lower boundary
Upper ............. upper boundary
σ ..................... standard deviation (σ
> 0)
µ ..................... mean
Execute .......... executes a calculation
Example To calculate the normal distribution probability for a specific
parameter value
For this example, we will calculate the normal distribution
probability when lower boundary = –
∞ (–1E99), upper
boundary = 36, σ = 2 and µ = 35.
- bEjjw
dgw
cw
dfw
1 (CALC)
prob ................ normal distribution probability
18 - 8
Distribution