TI-30XIIS
TI-81
|Entering Data (single list of data points each with frequency 1) |Entering Data (from a frequency distribution) |
|Clear previous data: |Clear previous data: |
|Press [pic] [pic][pic] |Press [pic] [pic][pic] |
|Press down arrow to ClrStat |Press down arrow to ClrStat |
|Press [pic] |Press [pic] |
|Press [pic] |Press [pic] |
| | |
|Enter the data | |
| |Enter the data and frequencies |
|Press [pic] [pic][pic] | |
|Press down arrow to ClrStat |Press [pic] [pic][pic] |
|Press [pic] |Press down arrow to ClrStat |
| |Press [pic] |
|Input the first number after X1= | |
|Press [pic] [pic] |Input the first number after X1= |
| |Press [pic] |
|Input the second number after X2= |Input the first frequency after Y1= |
|Press [pic] [pic] |Press [pic] |
| | |
| |Input the second number after X2= |
|Continue until you have entered all the data |Press [pic] |
| |Input the second frequency after Y2= |
|Press [pic] [pic] |Press [pic] |
| | |
| |Press [pic] [pic] |
|Calculating mean and standard deviation | |
|Press [pic] [pic] | |
|Press down arrow to 1-Var |Calculating mean and standard deviation |
|Press [pic] |Press [pic] [pic] |
| |Press down arrow to 1-Var |
| |Press [pic] |
Reading mean and standard deviation
[pic] is the mean.
[pic] is the standard deviation.
[pic]
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ENTER
QUIT
2nd
STAT
MATRX
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