| Author | Comment |
ballerboyz
Probe
Posted: 21 Jan 2006
23:39 GMT
Total Posts: 6 | TI-89 HW 2.00
OS V 2.09
When i use variance or stdDev i get answers that are not what they are supposed to be.
Some examples:
Variance of 62,65,78,80,83 is supposed to be 71.4
but on calc i get 89.3
StdDev of 62,65,78,80,83 is supposed to be 8.5
but on calc i get 9.45
This is very strange, but i need the calc for verifying my answers on homework. I'm a tenth grader.
Thank you for your help! :) |
