Gce Model Questions Vol1 2017 Computer Studies Question 4

Practice essay / theory question 4 from the 2017 Gce Model Questions Vol1 Computer Studies examination. This question covers Primary and secondary data, Data collection methods, Relational databases vs flat files, Grouped data analysis .

Gce Model Questions Vol1 2017 Computer Studies Essay / Theory
Topics: Primary and secondary data Data collection methods Relational databases vs flat files Grouped data analysis
Question 4 GCE_MODEL_QUESTIONS_VOL1 • 2017 • COMPUTER_STUDIES • essay

Answer the following questions on data and information.

Question Parts

( a )
Define primary data and secondary data. Provide two examples of each type that could be collected in a secondary school.
( b )
Explain two advantages and two disadvantages of using a relational database rather than a flat file system for storing student records.
( c )
A survey of 120 students produced the following grouped age data: Age (years) | Frequency 10‑14 | 20 15‑19 | 45 20‑24 | 30 25‑29 | 15 30‑34 | 10 Using this data, calculate the mean age of the students (show your working) and comment on the shape of the distribution.

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About This Question

This is Gce Model Questions Vol1 2017 Computer Studies Question 4. It is one of the essay questions from the 2017 Gce Model Questions Vol1 Computer Studies examination.

The question covers Primary and secondary data, Data collection methods, Relational databases vs flat files, Grouped data analysis .

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