Texas Instruments TI-NSPIRE Software Manual page 229

population standard deviation, s
•
• sample size, n
• X-min
• first quartile, Q
• median
• third quartile, Q
• X-max
• sum of squared deviations, SSx =
Each element in
corresponding data point in
integers > 0.
Two-Variable Statistics (TwoVar)
The Two-Variable Statistics calculation analyzes paired data.
independent variable.
data returned for the data sets using this analysis technique are:
For each list:
• sample mean,
• sum of the data,
• sum of the squared data,
• sample standard deviation, sx = s
population standard deviation, sx = s
•
• X-min or Y-min
• first quartile, Q
• median
• third quartile, Q
• X-max or Y-max
• sum of squared deviations, SSx =
Additional data:
• sample size for each data set, n
Σxy
•
Using Lists & Spreadsheet
1
3
freqlist
is the frequency of occurrence for each
Xlistname
List 2
is the dependent variable. The statistical
x y
or
Σx
or
X or Q
1 1
X or Q
3
x
Σ x x (
–
freqlist
. elements must be
Σy
Σx 2 Σy 2
or
x or sy = s
n-1
x or sy = s
n
Y
Y
3
Σ x x (
–
) 2
List 1
y
n-1
y
n
) 2
Σ y y (
–
or SSy =
is the
) 2
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