78 Statistics 1Var app
Computed statistics
Pressing displays the results in the following table.
When the data set contains an odd number of values, the
data set’s median value is not used when calculating Q1
and Q3 in the table above. For example, for the following
data set:
{3,5,7,8,15,16,17}
only the first three items, 3, 5, and 7 are used to calculate
Q1, and only the last three terms, 15, 16, and 17 are
used to calculate Q3.
Statistic Definition
n Number of data points.
Min Minimum data value in data set.
Q1 First quartile: median of values to
left of median.
Med Median value of data set.
Q3 Third quartile: median of values to
right of median.
Max Maximum data value in data set.
Σ Sum of data values (with their
frequencies).
Σ Sum of the squares of the data
values.
Mean of the data values.
Sample standard deviation of the
data set.
Population standard deviation of
the data set.
seX Standard error of the data set.
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