Frequency Distribution Table PPT (Concept of Statistical Tables: Frequency Distribution)
‘Tables’ vs ‘statistical tables’, Things to remember when creating a ‘table’, Components of a ‘table’, Understand the concept of ‘class’ and ‘frequency’, Concept of Range and Class Intervals, Inclusive and Exclusive Class, How a statistical table is prepared? (Frequency distribution), What is ‘tally mark’ method?
Frequency Table / Frequency Distribution (Definition, Construction and Significance of Frequency Distribution)
In the previous post, we have discussed the concept of Tables and Tabulation of Variables in Statistics. Here we will discuss the concept of Statistical Tables better known as Frequency Distributions of Frequency Tables.
Ø There are different types of tables in statistics.
Ø The most common type of table in the statistics is ‘Frequency Table’ or ‘Frequency Distribution’.
ØFrequency Distribution definition: “The frequencies of occurrence of data values are presented in tabular form in the ascending order of magnitude”.
Ø It is a statistical table that shows the frequency of various outcomes in a sample.
Ø The frequency table shows the total for each category or group of data.
Example: A raw data and its frequency distribution is given below
Ø A frequency table composed of TWO components:
Class and Frequency
Ø When a population is divided into small groups on the basis of some attributes or characteristics, each such group is considered as a class.
Ø In each class, the number of individual value of that particular feature is one or many.
Ø Such occurrence of individuals in a class is called frequency.
Thus a Frequency Table is “the arrangement of distribution of individuals of a class which displays the frequency of the individuals according to a characteristic.”
Tables and Tabulation PPT (Graphical Representation of Data 1: Tables PPT and PDF)
What is Data or Variable? Why data is called variable in statistics? What are the importance of Data Presentation? What are the methods of Data Presentation? What is meant by Graphical Representation of Data? What is ‘tabulation’? Understand the concept of ‘data table’. Things to remember when creating a table
Errors in Statistics PPT (Type I and Type II Error in Statistics PPT)
What is Level of Significance? What is Null Hypothesis? What is Alternate Hypothesis? What are statistical errors? What is the importance of ‘level of significance’ in statistical errors? Different types of statistical errors. What is Type I Error? How to avoid Type I Error? What is Type II Error? How to avoid type II Error?