answersLogoWhite

0


Best Answer

Introduction:

Frequency distribution is used to compress and summarize the whole data by grouping the data into classes and records the data points that fall in each class. The frequency distribution is considered as the base for descriptive statistics and they are also used to define the ordinal, nominal and the interval data. Frequency distribution is the comfortable way of grouping and organizing the data.

Example of Frequency Distribution:Consider the frequency table for the students in a class where the data has been grouped according to the height of the students.

Range of height Total number of student's cumulative frequency

3.0 - 4.5 feet 15 15

4.5 - 5.0 feet 20 35

5.0 - 6.5 feet 25 50

6.5 - 7.0 feet 30 80

In the case of nominal data the use of the contingency table is required. The frequency distributions are used to present the data graphically.

Types of Frequency Distributions:There are three types of frequency distributions.
  1. Cumulative frequency distribution,
  2. Grouped frequency distribution,
  3. Cumulative Grouped frequency distribution.

Cumulative frequency distribution (type 1):

The cumulative frequency can be found from the frequency distribution by adding the cumulative frequency column. The highest cumulative frequency should be equal to the total number of frequencies

Temperature Frequency Cumulative frequency

47 3 22

46 3 19

45 4 15

44 3 12

43 3 9

Grouped frequency distribution (type 2):

The grouped frequency distribution can be formed by grouping the values together into the class intervals. The range can be calculated using the maximum and the minimum values.

Data set for temperature

45 48 47 43 44

42 45 43 46 46

45 47 46 47 45

43 47 45 47 46

44 43 44 46 47

The grouped frequency distribution is given by

Class interval midpoint frequency

45- 47 46 15

42 - 44 43 7

Cumulative grouped frequency distribution (type 3):

In cumulative frequency distribution the cumulative frequency column is added to the grouped frequency distribution so that we can get the cumulative grouped frequency distribution.

Class interval midpoint frequency Cumulative frequency

45- 47 46 15 22

42 - 44 43 7 7

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many types are there of frequency distribution?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is simple frequency distribution table?

The frequency distribution table lists all the possible events and how many times (frequency) they occurred.


What is derived frequency distribution?

It is derived frequency distribution. XD


What is the difference of frequency distribution and relative frequency distribution?

A frequency distribution lists each value in the distribution and the number times it appears, while a relative frequency distribution reports the proportion of cases reporting each value


What is the cumulative column frequency distribution table?

Cumulative Frequency is The total of a frequency and all frequencies so far in a frequency distribution. It is the 'running total' of frequencies in the frequency distribution table.


What are the disadvantages of frequency distribution in points?

What are the disadvantages of frequency distribution tables


Can frequency distribution contain qualitative data?

frequency distribution contain qualitative data


Is the cummulative frequency distribution a relative frequency distribution expressed in absolute numbers?

in form of percent


What is the name for a relative frequency distribution shown by heights?

Are you talking about a histogram of the relative frequency distribution.


How many types of frequency are there?

Infinitely many.


What are the importance of frequency distribution tables?

What are the importance of frequency


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.


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.