IIBA Certification in Business Data Analytics (IIBA - CBDA) - CBDA 模擬練習
While formulating the results from completed analysis, the analytics team is applying different techniques to determine an optimal solution to the specified business problem. Which of the following runs the risk of introducing bias in their decision making process?
正解: B
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A software company launched a new product in late 2016. The product manager is reviewing a Box and Whisker plot used to compare year-over-year sales, from 2017 to 2018. What is the conclusion he can make from this chart?
正解: C
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?
正解: D
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A grocery store chain has requested help in determining how customer preferences are changing with regards to home delivery. An analytics team has completed researching the number of online orders received requesting home delivery versus in-store pickup. The business analyst has selected a model to enable a quick comparison between curbside pick-up, in-store pickup, and home delivery for the last 3 years.Which model has the business analyst chosen?
正解: C
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The team has completed their analysis on a vast amount of collected data and agree on their recommendations for action.
However, they are having difficulty in developing the appropriate messages to support their recommendations.
The business analysis professional suggests which technique to assist the team?
However, they are having difficulty in developing the appropriate messages to support their recommendations.
The business analysis professional suggests which technique to assist the team?
正解: C
解説: (PassTest メンバーにのみ表示されます)
An analytics team is sourcing data for a new analytics initiative and is deciding between two comparable data sources. One source being considered is a very large dataset and another consists of three smaller sources.
What advantage will the larger dataset provide over the three smaller sources?
What advantage will the larger dataset provide over the three smaller sources?
正解: C
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The definition of data elements is different across various data sources. The organization is looking to improve the usability of data across the organization. Which practice would help address this problem?
正解: C
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Collaborative games are used by a business analyst to identify the research questions to be explored within an analytics system.
Participants are asked to write down a research question on a sticky note, put the notes on the wall,and move them towards related research questions. What type of Collaborative game is being played?
Participants are asked to write down a research question on a sticky note, put the notes on the wall,and move them towards related research questions. What type of Collaborative game is being played?
正解: A
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A database analyst is modelling a database for a large toy manufacturer. Which statement describes a logical database model?
正解: D
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A professional association is funded by membership fees. The membership renewal occurs every 5 years.
Although, they have a strong subscription rate each year, their renewal rate is low. They are working with an external firm specializing in Business Analytics to identify the groups of customers that have a high likelihood of cancelling their subscription after their first 5-year term ends. This type of study is called:
Although, they have a strong subscription rate each year, their renewal rate is low. They are working with an external firm specializing in Business Analytics to identify the groups of customers that have a high likelihood of cancelling their subscription after their first 5-year term ends. This type of study is called:
正解: A
解説: (PassTest メンバーにのみ表示されます)
There were 7 students enrolled in the Introduction to Artificial Intelligence course. The scores from the final exam were as follows: 64, 70. 80, 80, 90, 98, 100 What is the mean and median for the outlined scores?
正解: D
解説: (PassTest メンバーにのみ表示されます)