Texas Instruments TI-82 STATS Manual Book page 200

LIST MATH Menu
sum(, prod(
Sums and
Products of
Numeric
Sequences
stdDev(,
variance(
11–18 Lists
(continued)
(summation) returns the sum of the elements in list. start
sum(
and end are optional; they specify a range of elements. list
elements can be real or complex numbers.
returns the product of all elements of list. start and end
prod(
elements are optional; they specify a range of list elements. list
elements can be real or complex numbers.
list[ start end]
sum( , ,
You can combine
sum(
upper
G
expression(x)
x=lower
(N–1)
To evaluate G 2
returns the standard deviation of the elements in list. The
stdDev(
default value for freqlist is 1. Each freqlist element counts the
number of consecutive occurrences of the corresponding element in
list. Complex lists are not valid.
returns the variance of the elements in list. The default
variance(
value for freqlist is 1. Each freqlist element counts the number of
consecutive occurrences of the corresponding element in list.
Complex lists are not valid.
list[ freqlist]
stdDev( ,
list[ start
) prod( ,
or with
prod( seq(
upper
expression(x)
x=lower
from N=1 to 4:
list[
) variance( ,
end]
, )
to obtain:
freqlist]
)