Probability – CITIZEN SR-281 EN User Manual
Page 17
File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E17-
¾
If x = 5, y = 30, what are r, ? Ans : r = 30.4138126515, =
80.537677792
o
DEG
( )
R
P ( 5 ,
[ 2nd ]
[ R P ] 5 [ 2
nd ] [ ] 30
3 0
DEG
r
[
]
3 0 . 4 1 3 8 1 2 6 5 1 5
DEG
θ
[ 2nd ] [ x ↔y ]
8 0 . 5 3 7 6 7 7 7 9 2
¾
If r = 25, = 56
o
what are x, y ? Ans : x = 13.9798225868, y =
20.7259393139
DEG
( )
P
R ( 2 5 ,
[ 2nd ] [ P R ] 25 [ 2nd ] [ ] 56
5 6
DEG
X
[
]
1 3 . 9 7 9 8 2 2 5 8 6 8
DEG
Y
[ 2nd ] [ x ↔y ]
2 0 . 7 2 5 9 3 9 3 1 3 9
Probability
This calculator provides the following probability functions :
[ nPr ] Calculates the number of possible permutations of n item
taken r at a time.
[ nCr ] Calculates the number of possible combinations of n items
taken r at a time.
[ X! ]
Calculates the factorial of a specified positive integer n,
where nЉ69.
[ RND ] Generates a random number between 0.000 and 0.999
¾
840
!
]
)
4
7
(
[
!
7
=
−
DEG
7 P 4 =
7 [ 2nd ] [ nPr ] 4 [
]
8 4 0 .
¾
5
3
!
]
)
4
7
(
[
!
4
!
7
=
−