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Hi
standard devition is easy once you get your head around it for grouped data you have to take the equation apart so put in the sum of f then bracket (x-mean) squared and then divide by the sum of f and square root everything on the calculator. And then for non-grouped data you need to do the sum of (x-mean)squared then divided by the sum of n and once again square root everything.
Hope this helps
Good Luck
Maylee
Yes and here is how to do 1-var statistics and 2-var statistics. Please read the whole post. I assume
you
know the theory. I will show you the key strokes
For
1-Var statistics Press [MODE][3:STAT] [1:1-VAR].
You are ready to
enter values in the X column. Enter a number and press [=]. Cursor
jumps to second number to enter. Keep entering numbers and pressing
[=] till all numbers are in. Press the [=] key after the
last one. Press
[AC] key to clear the screen. Press
[SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the
statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1. Press
the
number corresponding to the statistical value you want, ex 1:n . The
variable appears on screen. Press [=] and it will be displayed. To
display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .
To access the sum of squares sigma x^2 and the sum of data sigma x
press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x].
Press [SHIFT][STAT][6:MinMax] to access minX and maxX.
For 2-var statistics To
perform
2 variable statistics you press [MODE][3:STAT] and any of the
other regression options (except 1:1-Var). A two column template opens
where you enter the X and Y values. When finished entering data, press
[SHIFT][STAT][5:Var]. to access the different statistics. As I assumed
above, you should be able to
recognize what each variable means.
U2
04
EEPROM serial communication error
11
counter check sum error
12
adjustment value check sum error(EEPROM)
40
CRUM communication error
U2
04
EPROM error
11
Main counter error
12
EPROM error
U2
04
EEPROM serial communication error
11
counter check sum error
12
adjustment value check sum error(EEPROM)
40
CRUM communication errorYou need the service help. It is no a distans work Good luck)
you may wanna try to service the tranny and change the filter and screen and add sum lucas transmission treatment,if this doesnt help you will need to replace the transmission more than likely
If you have the cd that came with your computer, restore your computer
or can go :
Start - Accessories - System Tools - Click on : System Restore
1st will be a screen will say : Welcome to System Restore...same screen will says : To Begin : Click Restore My computer to an earlier time - Click next -
2nd screen --- will show a calendar - Go all the way back on the calendar ( before ) you lost your windows you said it has been tore down for over a year ...so go back to 1 year before u lost your windows.
Click Next ....Follow instruction ... When finsihed ..........RE- BOOT your computer .
Or you can try any of theses site that is related with Dell laptops - Dell Support
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