7. Mean and standard Deviation for Ungroup Data.avi

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Mr Lim

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Published on February 25, 2011 11:39:59 PM ● Video Link: https://www.youtube.com/watch?v=AdfyZlA9XhU

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Statistics, use Casio fx-570ES Calculator to find the mean and standard deviation for ungroup data.

Steps:
1. Press mode then 3 (STAT)
2. Prees 1 (1-VAR)
3. key in value, 53, =, 32, =, 61, =, 27, =, 39, =, 44, =, 49, =, 57
4. Press AC to go to normal screen
5. Press SHIFT then 1 (Call the second function STAT )
6. Press 5 (Var)
7. Choos 1 for n, 2 for mean, 3 for standard deviation for population (this example we assume it's population), 4 for standard deviation for sample (which use n-1 instead of n in the formula denominator.)
8. After you find all these value, if you want to do the normal calculation, remember to press mode then 1 to change back to COMP mode.
Power point can download from :
http://www.scribd.com/doc/76738731