Standard Deviation (1 Viewer)

[Kutay]

Hey i was wondering how you calculate standard deviation?

i have a casio fx - 82MS!!!!!!

its been so long since i have done it and have forgotten hah

 

[Supra]

Hey i was wondering how you calculate standard deviation?

i have a casio fx - 82MS!!!!!!

its been so long since i have done it and have forgotten hah

ok umm i use FX 82 TL should be very similar...

make sure u clear all your memory...for me thats done by SHIFT > CLR (near hte ON button) > '3 (all)' > '='

Now put u calc in stat mode...
Just press the mode button, then press "2" for hte SD mode...

Ok now, lets say we have the following data:

10,15,20,25

in ur calculator, just type in "10", and hit the "M+" button
then do this for the rest of the numbers...

ok now just press AC...then to find hte mean and standard deviation:
SHIFT > "2" > "1" (x_bar) which is the mean
SHIFT > "2" > "3" (x_sigma_n-1) which is the standard deviation

ok with negative numbers:

-10, 15, -20, 25

when u press M+ this time for each one, its a good idea to press AC (clear) after u see the n=1,n=2.n=3,n=4

because it can stuff up

Good luck

 

[lmnopq]

hey if u just search your calculator name and model followed by "standard deviation" you can find specific instructions on how to do it on your calculator... but i've done the search for you so heres the link

http://www.maths.usyd.edu.au/u/maryp/m1005/casio.pdf#search='casio%2082ms%20standard%20deviation'

 

[sukiyaki]

wrong section mr

 

[Kutay]

ok umm i use FX 82 TL should be very similar...

make sure u clear all your memory...for me thats done by SHIFT > CLR (near hte ON button) > '3 (all)' > '='

Now put u calc in stat mode...
Just press the mode button, then press "2" for hte SD mode...

Ok now, lets say we have the following data:

10,15,20,25

in ur calculator, just type in "10", and hit the "M+" button
then do this for the rest of the numbers...

ok now just press AC...then to find hte mean and standard deviation:
SHIFT > "2" > "1" (x_bar) which is the mean
SHIFT > "2" > "3" (x_sigma_n-1) which is the standard deviation

ok with negative numbers:

-10, 15, -20, 25

when u press M+ this time for each one, its a good idea to press AC (clear) after u see the n=1,n=2.n=3,n=4

because it can stuff up

Good luck

Thank you