IIBA Exam CBDA Topic 1 Question 5 Discussion

Actual exam question for IIBA's Certification in Business Data Analytics exam

Question #: 5
Topic #: 1

[All Certification in Business Data Analytics Questions]

An analyst is performing regression analysis and reviewing the results. They would like to rescale the variables in the model to more clearly reflect the relationship between the regression coefficients. Which technique could be used to rescale the variables?

ADimension Reduction

BMean Centering

CNormalization

DClustering
Explanation:
Normalization is a technique that rescales the values of the variables in a data set to a common range, such as [0,1] or [-1,1]. Normalization can help reduce the effect of outliers, improve the performance of some algorithms, and make the interpretation of the regression coefficients easier and more consistent. Normalization can be done using different methods, such as min-max scaling, z-score scaling, or unit vector scaling.

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Suggested Answer: C

by Detra at Mar 08, 2024, 12:50 AM

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