HP Prime Graphing NW280AAABA manual Computed statistics

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.

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
Σ X	Sum of data values (with their
	frequencies)
Σ X2	Sum of the squares of the data
	values
x	Mean
sX	Sample standard deviation
σX	Population standard deviation
serrX	Standard error

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.

218 Statistics 1Var app