The data which are collected for the first time by an individual or the group of individuals, institution / organisations are called ____________.
Primary sources
Secondary sources
Frequency distribution
None of these
____________ is a systematic arrangement of data in columns and rows.
Interview
Statistical table
Questionnaire
____________ is one of the simplest devices to summarise and present the data.
Personal observation
Data collected from any published or unpublished sources are called ____________.
__________ enables the reader to locate the desired information quickly.
____________ helps in comparing the two or more than two frequency distributions.
Frequency polygon
Inclusive method
Exclusive method
The curve obtained by plotting cumulative frequencies is called an ____________.
Ogive
_________ include government publications, documents and reports.
Primary source
Secondary source
___________ is the some of all the frequencies, assigned to all classes, represents the total number of individual observations in the series.
Raw data
Cumulative frequencies
Simple frequencies
The unpublished reports, monographs and documents are yet another source of ___________.
Primary data
Personal data
Secondary data
