___________ is constructed either by the less than method or the more than method.
Inclusive method
Exclusive method
Frequency polygon
Ogive
In ___________ method, a value equal to the upper limit of a group is included in the same group.
Inclusive
Exclusive
None of these
To draw meaningful inferences and to make them usable the _________ requires tabulation and classification.
Interview
Frequency
Questionnaire
Raw data
The unpublished reports, monographs and documents are yet another source of ___________.
Primary data
Personal data
Secondary data
When the frequencies are added, they are called _____________.
Simple frequency
Cumulative frequency
In __________ method both upper and lower limit are included in find the frequency distribution.
In __________ method, simple questions and their possible answers are written on a plain paper and the respondents have to tick mark the possible answers from the given choices.
Personal observation
___________ are collected, tabulated and presented in a tabulated form either in absolute terms, percentages or indices.
Data
Information
The objective of the survey should be clearly mentioned in the ___________.
Frequency distribution
__________ is expressed by ' f '.
Simple frequencies
Cumulative frequencies
