Chapter 12: Statistics 207
Q
1 and Q3
The first quartile (Q1) is the median of points between minX and Med (median). The third quartile
(
Q3) is the median of points between Med and maxX.
Statistical Analysis in a Program
Entering Stat Data
You can enter statistical data, calculate statistical results, and fit models to data from a program.
You can enter statistical data into lists directly within the program (Chapter 11).
Statistical Calculations
To perform a statistical calculation from a program, follow these steps.
1. On a blank line in the program editor, select the type of calculation from the STAT CALC menu.
2. Enter the names of the lists to use in the calculation. Separate the list names with a comma.
3. Enter a comma and then the name of a Y= variable, if you want to store the regression equation
to a Y= variable.
correlation coefficient r EQ
coefficient of determination
r
2
, R
2
EQ
regression equation RegEQ EQ
summary points (Med-Med only) x1, y1, x2,
y2, x3, y3
PTS
Variables
1-Var
Stats
2-Var
Stats Other
VARS
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