4-8
u
To calculate the median of data items of specified frequency
[OPTN]
-
[LIST]
-
[Med]
This procedure uses two lists: one that contains values and one that indicates the frequency
(number of occurrences) of each value. The frequency of the data in Cell 1 of the first list is
indicated by the value in Cell 1 of the second list, etc.
• The two lists must contain the same number of data items. If they don’t, an error occurs.
K
1
(LIST)
6
(
g
)
4
(Med)
6
(
g
)
6
(
g
)
1
(List) <list number 1 - 26 (data)>
,
1
(List)
<list number 1 - 26 (frequency)>
!
/
( ) )
w
Example
To calculate the median of values in List 1 (36, 16, 58, 46, 56), whose
frequency is indicated by List 2 (75, 89, 98, 72, 67)
A
K
1
(LIST)
6
(
g
)
4
(Med)
6
(
g
)
6
(
g
)
1
(List)
b,
1
(List)
c
!
/
( ) )
w
u
To combine lists
[OPTN]
-
[LIST]
-
[Aug]
• You can combine two different lists into a single list. The result of a list combination
operation is stored in ListAns memory.
K
1
(LIST)
6
(
g
)
5
(Aug)
6
(
g
)
6
(
g
)
1
(List) <list number 1 - 26>
,
1
(List)
<list number 1 - 26>
!
/
( ) )
w
Example
To combine the List 1 (–3, –2) and List 2 (1, 9, 10)
A
K
1
(LIST)
6
(
g
)
5
(Aug)
6
(
g
)
6
(
g
)
1
(List)
b,
1
(List)
c
!
/
( ) )
w
u
To calculate the sum of data items in a list
[OPTN]
-
[LIST]
-
[Sum]
K
1
(LIST)
6
(
g
)
6
(
g
)
1
(Sum)
6
(
g
)
1
(List) <list number 1 - 26>
w
Example
To calculate the sum of data items in List 1 (36, 16, 58, 46, 56)
A
K
1
(LIST)
6
(
g
)
6
(
g
)
1
(Sum)
6
(
g
)
1
(List)
b
w
u
To calculate the product of values in a list
[OPTN]
-
[LIST]
-
[Prod]
K
1
(LIST)
6
(
g
)
6
(
g
)
2
(Prod)
6
(
g
)
1
(List) <list number 1 - 26>
w
Example
To calculate the product of values in List 1 (2, 3, 6, 5, 4)
A
K
1
(LIST)
6
(
g
)
6
(
g
)
2
(Prod)
6
(
g
)
1
(List)
b
w