Construction of a Frequency Distribution | Business Mathematics and Statistics - B Com PDF Download

 Page 1


FREQUENCY DISTRIBUTION
Page 2


FREQUENCY DISTRIBUTION
INTRODUCTION
• In statistics, a frequency distribution is a table that displays the
frequency of various outcomes in a sample. Each entry in the table
contains the frequency or count of the occurrences of values within
a particular group or interval, and in this way, the table summarizes
the distribution of values in the sample.
• A frequency distribution shows us a summarized grouping of data
divided into mutually exclusive classes and the number of
occurrences in a class. It is a way of showing unorganized data.
e.g. to show results of an election, income of people for a certain
region, sales of a product within a certain period, student loan
amounts of graduates, etc. Some of the graphs that can be used with
frequency distributions are histograms, line charts, bar charts and pie
charts. Frequency distributions are used for both qualitative and
quantitative data.
2
Page 3


FREQUENCY DISTRIBUTION
INTRODUCTION
• In statistics, a frequency distribution is a table that displays the
frequency of various outcomes in a sample. Each entry in the table
contains the frequency or count of the occurrences of values within
a particular group or interval, and in this way, the table summarizes
the distribution of values in the sample.
• A frequency distribution shows us a summarized grouping of data
divided into mutually exclusive classes and the number of
occurrences in a class. It is a way of showing unorganized data.
e.g. to show results of an election, income of people for a certain
region, sales of a product within a certain period, student loan
amounts of graduates, etc. Some of the graphs that can be used with
frequency distributions are histograms, line charts, bar charts and pie
charts. Frequency distributions are used for both qualitative and
quantitative data.
2
Types of frequency distribution
1. Relative frequency distribution
2. Cumulative frequency distribution
- Cumulative relative frequency distribution
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Page 4


FREQUENCY DISTRIBUTION
INTRODUCTION
• In statistics, a frequency distribution is a table that displays the
frequency of various outcomes in a sample. Each entry in the table
contains the frequency or count of the occurrences of values within
a particular group or interval, and in this way, the table summarizes
the distribution of values in the sample.
• A frequency distribution shows us a summarized grouping of data
divided into mutually exclusive classes and the number of
occurrences in a class. It is a way of showing unorganized data.
e.g. to show results of an election, income of people for a certain
region, sales of a product within a certain period, student loan
amounts of graduates, etc. Some of the graphs that can be used with
frequency distributions are histograms, line charts, bar charts and pie
charts. Frequency distributions are used for both qualitative and
quantitative data.
2
Types of frequency distribution
1. Relative frequency distribution
2. Cumulative frequency distribution
- Cumulative relative frequency distribution
4
RELATIVE FREQUENCY
DISTRIBUTION
A frequency distribution where each of the class
frequencies is divided by the total no of observations.
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Page 5


FREQUENCY DISTRIBUTION
INTRODUCTION
• In statistics, a frequency distribution is a table that displays the
frequency of various outcomes in a sample. Each entry in the table
contains the frequency or count of the occurrences of values within
a particular group or interval, and in this way, the table summarizes
the distribution of values in the sample.
• A frequency distribution shows us a summarized grouping of data
divided into mutually exclusive classes and the number of
occurrences in a class. It is a way of showing unorganized data.
e.g. to show results of an election, income of people for a certain
region, sales of a product within a certain period, student loan
amounts of graduates, etc. Some of the graphs that can be used with
frequency distributions are histograms, line charts, bar charts and pie
charts. Frequency distributions are used for both qualitative and
quantitative data.
2
Types of frequency distribution
1. Relative frequency distribution
2. Cumulative frequency distribution
- Cumulative relative frequency distribution
4
RELATIVE FREQUENCY
DISTRIBUTION
A frequency distribution where each of the class
frequencies is divided by the total no of observations.
5
CUMULATIVE FREQUENCY 
DISTRIBUTION
Technically, a cumulative frequency distribution is the
sum of the class and all classes below it in a frequency
distribution. All that means is you’re adding up a value
and all of the values that came before it.
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