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IIBA Exam CBDA Topic 4 Question 28 Discussion

Actual exam question for IIBA's CBDA exam
Question #: 28
Topic #: 4
[All CBDA Questions]

A lab is conducting a study on protein interactions. They have used the data to create a graph visualization. In graph visualization, what would an edge represent?

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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.


Contribute your Thoughts:

Arlette
4 days ago
I see, so an edge shows the connection between data points. That makes sense.
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Lorrie
5 days ago
I agree with Silva. An edge in a graph visualization does represent a link between two data points.
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Silva
12 days ago
I think an edge represents a link between two datapoints.
upvoted 0 times
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