Certification in Business Data Analytics (IIBA - CBDA) (CBDA) Free Practice Test

Question 1

A government agency is conducting a study on the performance of 12th grade students' in mathematics across the country. In particular, they want to understand if there is a relationship between intelligence and scores, as well as the difference in performance between various locations. Which combination of inferential statistics procedures should be used?

A. Correlation co-efficient, analysis of variance

B. Frequency distribution, time-series

C. Mean, median

D. Range, standard deviation

Correct Answer: A

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Question 2

A real estate broker is tracking monthly sales between two of its teams. The results have been visualized using a Treemap chart. What is the advantage of using a Treemap chart, over a Sunburst chart to visualize the results?

A. With its rectangles and straight lines, a Treemap is optimized to include more

B. With its colour scheme, it is easy to compare the variables within a Treemap

C. A Treemap shows all the hierarchical levels of data as opposed to a Sunburst chart

D. A Treemap is meant to represent a hierarchical result set as opposed to a Sunburst chart

Correct Answer: A

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Question 3

What is the relationship between a Customer entity and an Order entity, where a customer entry will be present in the Customer entity regardless of whether an order was made?

A. many-to-many

B. zero-to-many

C. zero-to-one

D. one-to-one

Correct Answer: B

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Question 4

To support their recommendation, the analytics team has identified investment and resources required to implement. The team has also identified key activities and events that are required to transition the organization through various stages to the future state.This information is clearly articulated in the:

A. Gantt chart

B. Gap analysis

C. Change strategy

D. Risk assessment

Correct Answer: C

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Question 5

DIAGRAM
The following boxplot is produced from a dataset. From this boxplot which of the following conclusions can be drawn?

Year-over-Year Sales
300
200

A. The medians are the same but the inter-quartile ranges are not

B. The medians and the inter-quartile range is the same in each group

C. The inter-quartile ranges are the same but the medians are not

D. The medians and the inter-quartile ranges are different in each group

Correct Answer: D

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Question 6

A business analyst constructs a model they would like to review with key business stakeholders but decides to review the model first with the data scientist who has performed the data analysis. The data scientist provides some suggestions on how to reduce the complexity in the model. One suggestion is to use color to group objects needing to be associated. The data scientist is encouraging using which Gestalt Principle of Perception with regards to data visualization?

A. Proximity

B. Enclosure

C. Connection

D. Similarity

Correct Answer: D

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Question 7

A call center has requested to review their sales conversion data for the month. The analyst working on this request is trying to identify the chart that will effectively present the data, which includes: the number of leads, the number of calls made, the number of calls completed, the number of customers interested and the number of sales. What chart should the analyst use to show the values across each stage of the pipeline?

A. Pie chart

B. Bar chart

C. Funnel chart

D. Bullet chart

Correct Answer: C

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Question 8

The data analysis completed by the analytics team points to three potential options that could be recommended by the team each of which will help their organization meet their desired goal. Given that there is no significant difference in the results that each option would provide, the team will reach a final recommendation by determining value to be delivered to specific parts of the organization and:

A. By optaining a decision by senior management

B. Within the functional unit with the most staff

C. By which manager wants the change the most

D. Assessing the impact of change for each one

Correct Answer: D

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Question 9

Interested in ensuring that analytics continues to contribute value to the overall organization, the lead analyst suggests developing a long term plan to define how the enterprise will identify, store, manage, share, and use its data long-term.The analyst is proposing the development of a:

A. Data management plan

B. Business strategy

C. Data roadmap

D. Data strategy

Correct Answer: D

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Question 10

A consumer product company has recently seen decline in sales in their athletic wear over the last 3 quarters.
Along with a customer satisfaction survey on their athletic wear products, a study on the competitive market has been initiated. The analyst working has created a dashboard, integrating the results from the market study with customer feedback. On reviewing with the analytics manager, the feedback received was that the visuals were powerful, but the dashboard lacked narrative.What does the manager mean by this?

A. Insights need to be supported by context and comments to engage the audience

B. Commentary around why each visual was selected to depict the data will provide context

C. More commentary needs to be added to add value to the audience

D. Adding a story example will augment the experience for the audience

Correct Answer: A

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IIBA Certification in Business Data Analytics (IIBA - CBDA) (CBDA) Free Practice Test