3-2-5

Manipulating List Data

u To calculate the mean of data items[OPTN]-[LIST]-[Mean]

K1(LIST)6(g)3(Mean)6(g)6(g)1(List) <list number 1-26>)w

Example To calculate the mean of data items in List 1 (36, 16, 58, 46, 56)

AK1(LIST)6(g)3(Mean)

6(g)6(g)1(List)b)w

u To calculate the mean of data items of specified frequency

[OPTN]-[LIST]-[Mean]

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.

K1(LIST)6(g)3(Mean)6(g)6(g)1(List)<list number 1-26 (data)>

,1(List)<list number 1-26 (frequency)>)w

Example

To calculate the mean of data items in List 1 (36, 16, 58, 46, 56), whose

 

frequency is indicated by List 2 (75, 89, 98, 72, 67)

AK1(LIST)6(g)3(Mean)

6(g)6(g)1(List)b,

1(List)c)w

u To calculate the median of data items in a list[OPTN]-[LIST]-[Med]

K1(LIST)6(g)4(Med)6(g)6(g)1(List)<list number 1-26> )w

Example To calculate the median of data items in List 1 (36, 16, 58, 46, 56)

AK1(LIST)6(g)4(Med)

6(g)6(g)1(List)b)w

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