Understanding Data

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Flashcards on Understanding Data, created by Aparna Dhirde on 03/24/2020.
Aparna Dhirde
Flashcards by Aparna Dhirde, updated more than 1 year ago
Aparna Dhirde
Created by Aparna Dhirde over 5 years ago
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What is Data? Data refer to unorganised facts that can be processed to generate meaningful result or information.
structured data Data which is organised and can be recorded in a well defined format is called structured data.
Unstructured data data which are not in the traditional row and column structure is called unstructured data.
Storage devices. Hard Disk, SSD, CD/DVD, Pen Drive, Memory Card, etc.
What is Data Processing Cycle? Data Processing cycle involves input and storage of data, its processing and generating output.
Which are statistical techniques? Mean, Median, Mode, Range, and Standard Deviation
Mean Mean is the average of given values
Median Median is the mid value when data are sorted in ascending/descending order.
Mode Mode is the data value that appears most number of times.
Range Range is the difference between the maximum and minimum values.
Standard deviation Standard deviation is the positive square root of the average of squared difference of each value from the mean.
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