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Obtaining Frequency Distributions - HP 50g User Manual

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Obtaining frequency distributions

The application 2. Frequencies.. in the STAT menu can be used to
obtain frequency distributions for a set of data. The data must be present
in the form of a column vector stored in variable DAT. To get started,
press ‚Ù˜@@@OK@@@ . The resulting input form contains the following
fields:
DAT:
the matrix containing the data of interest.
Col:
the column of DAT that is under scrutiny.
X-Min:
the minimum class boundary to be used in the frequency
distribution (default = -6.5).
the number of classes used in the frequency distribution
Bin Count:
(default = 13).
Bin Width:
the uniform width of each class in the frequency
distribution (default = 1).
Given a set of n data values: {x
one can group the data into a number of classes, or bins by counting the
frequency or number of values corresponding to each class.
application 2. Frequencies.. in the STAT menu will perform this
frequency count, and will keep track of those values that may be below the
minimum and above the maximum class boundaries (i.e., the outliers).
As an example, generate a relatively large data set, say 200 points, by
using the command RANM({200,1}), and storing the result into variable
Page 16-3
, x
, ..., x
} listed in no particular order,
1
2
n
The

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