10
Ti30xa School Edition.doc TI-30Xa SOLAR School Edition
Bob Fedorisko Revised: 05/16/03 9:26 AM Printed:
05/16/03 9:32 AM Page 10 of 23
Find the sum, mean, population standard deviation,
and sample standard deviation for the data set: 45, 55,
55, 55, 60, 80. The last data point is erroneously
entered as 8, removed with " a, and then
correctly entered as 80.
" h (if
STAT is displayed)
45 4 n= 1
55 " \ 3 4 n= 4
60 4 n= 5
8 4 n= 6
8 " a n= 5
80 4 n= 6
" c (sum) 350.
" ] (mean) 58.33333333
" _ (deviation, n weighting) 10.67187373
" ^ (deviation, n-1 weighting) 11.69045194
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