Texas Instruments TI-30XS - Manual (Page 33)

Copyright © 2006 Texas Instruments Incorporated 33
2-Var: Data: (45,30); (55,25). Find: xÅ(45)
³ Problem
For his last four tests, Anthony obtained the following scores.
Tests 2 and 4 were given a weight of 0.5, and tests 1 and 3
were given a weight of 1.
Stat Var 2 <
V 2 <
Clear all
data
v v$$$
Data <45 $ 55 $"30
$25 $
Stat
%t 2
(Your screen may not
show 3:StatVars if you
did not previously perform
a calculation.)
$ $
<######
<45 E <
Test No. 1 2 3 4
Score 12 13 10 15
Coefficient 1 0.5 1 0.5