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to avoid a large number of empty classes?

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Q: Why are unequal class intervals used in frequency distribution?
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Why are unequal class intervals sometimes used in a frequency distribution?

Usually because the frequencies at one or both ends of the distribution are very small.


Why use unequal class intervals in a frequency distribution?

they may be necessary in certain situations to avoid a large number of empty ,or almost empty, classes.


Why are unequal class intervals sometimes used in Frequency distribution?

Because sometimes adjacent classes have to be merged so that the frequencies are not too small. This is important if anonymity is to be preserved. It is also important for statistical testing.


What is the difference between stated and real class limits?

Real Class Limits are the class intervals of a frequency distribution when stated as in continuous categories. ie. 18.5-19.5, 20.7-34.7 Stated Class Limits are the class intervals of a frequency distribution when stated as discrete categories. ie. 19-21, 23-25


When drawing frequency distribution histograms what does it mean when the distribution is broken?

A histogram is "a representation of a frequency distribution by means of rectangles whose widths represent class intervals and whose areas are proportional to the corresponding frequencies.Broken distribution means that no data point falls in that class.


What is a sentence for class interval?

class interval - one of several convenient intervals into which the values of the variate of a frequency distribution may be grouped.


How is a frequency distribution converted to a relative frequency distribution?

The relative frequency of a class is the frequency of the class divided by the total number of frequencies of the class and is generally expresses as a percentage.


In a frequency distribution what is the number of observation in a class called?

Class Frequency


Open ended class within the frequency distribution?

If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess "open ended" classes.


What is the definition of the number of occurrences in a class?

Frequency Distribution


Does a simple frequency distribution provides the frequency of responses for each class interval?

Yes.


What are the parts of a frequency distribution table?

In a frequency distribution table, there are usually five parts/columns (12th grade statistics):class, frequency, mid-point, relative frequency, and cumulative frequency.