IIBA Exam CBDA Topic 1 Question 9 Discussion

Actual exam question for IIBA's CBDA exam

Question #: 9
Topic #: 1

[All CBDA Questions]

A job satisfaction survey is being developed. Half of the employees will be asked the question "Do you enjoy working in your workplace?" The other half will be asked "Do you like the current work benefits?". The business analyst raises concern over the survey. What is concerning to the business analyst?

APrecision

BReproducibility

CReliability

DValidity

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Suggested Answer: C

Covariance measures the directional relationship between the returns on two assets. A positive covariance means that asset returns move together while a negative covariance means they move inversely. Zero covariance indicates that the returns on the two assets move independently of each other. In the context of a scatter plot, zero covariance is represented by a plot where the points do not show any upward or downward trend but are rather scattered randomly on the graph with no discernible pattern.

Graph 4 displays such a pattern where there is no apparent relationship between the variables on the x and y axes, indicating that there is zero covariance between them.

by Milly at Apr 19, 2024, 12:28 PM

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2 months ago

This question is asking about the validity of the survey. If the employees are asked different questions, the results may not be comparable across the entire workforce.

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