User's Manual

218 Statistics 1Var app

you want to sort by income, then you make C2 the

independent column and C1 the dependent column.

4. Specify any frequency data column.

5. Tap .

The independent column is sorted as specified and

any other columns are sorted to match the

independent column. To sort just one column, choose

None for the Dependent and Frequency columns.

Computed statistics

Tapping

displays the following results for each

dataset selected in Symbolic view.

When the data set contains an odd number of values, the

median value is not used when calculating Q1 and Q3. For

example, for the 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 value

Q1 First quartile: median of values to

left of median

Med Median value

Q3 Third quartile: median of values to

right of median

Max Maximum value

 Sum of data values (with their

frequencies)

 Sum of the squares of the data

values

Mean

Sample standard deviation

Population standard deviation

serrX Standard error

X