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Question 81 - CBDA discussion

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While creating a dataset for analysis, the analyst reviews the data collected and finds a large percentage of records are missing values. Which activity would the analyst perform in order to use this dataset?

A.
Clustering
Answers
A.
Clustering
B.
Scale validation
Answers
B.
Scale validation
C.
Weighting
Answers
C.
Weighting
D.
Factor analysis
Answers
D.
Factor analysis
Suggested answer: C

Explanation:

Weighting is a technique that assigns different values or weights to different records or variables in a dataset, based on their importance or relevance. Weighting can be used to handle missing values by giving them a lower weight or imputing them with a weighted average of other values. Weighting can also help to adjust for sampling bias or non-response bias in the data collection process.

Reference:

* Understanding the Guide to Business Data Analytics, page 16

* Business Analysis Certification in Data Analytics, CBDA | IIBA, CBDA Competencies, Domain 3: Analyze Data

* CERTIFICATION IN BUSINESS DATA ANALYTICS HANDBOOK - IIBA, page 8, CBDA Exam Sample Questions and Self-Assessment, Question 4

asked 18/09/2024
Ahsan Ilyas
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