CBDA関連復習問題集を読むと, Certification in Business Data Analytics (IIBA

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CBDA試験対応、CBDA合格記

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IIBA Certification in Business Data Analytics (IIBA - CBDA) 認定 CBDA 試験問題 (Q89-Q94):

質問 # 89
An analyst is looking at a particular dataset that includes the scores across all 8th grade students, across three schools. The analyst is trying to determine which type of statistics average to use to best represent the results.
On looking through the dataset, the analyst has identified a few extreme outliers. As a result, the analyst was led to use the following type of average:

A. Mean
B. Median
C. Mode
D. Range

正解：B

解説：
The median is the type of statistics average that the analyst should use to best represent the results, because it is a measure of central tendency that divides the data set into two equal halves. The median is the middle value of the data set when it is arranged in ascending or descending order. The median is not affected by extreme outliers, unlike the mean, which is the arithmetic average of the data set. The median can give a more accurate representation of the typical score of the 8th grade students across the three schools. Options B, C, and D are not types of statistics average, but types of statistics measures that describe other aspects of the data set. The range is a measure of dispersion that shows the difference between the highest and the lowest values of the data set. The mean is a measure of central tendency that shows the sum of the values of the data set divided by the number of values. The mode is a measure of central tendency that shows the most frequent value of the data set. References:
*Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain 3:
Analyze Data
*Understanding the Guide to Business Data Analytics, page 17
*Business Data Analytics (IIBA®-CBDA Exam preparation) | Udemy, Section 3: Analyze Data, Lecture 13:
Descriptive Statistics

質問 # 90
An analyst calculates the average, median, and mode values for a dataset.What type of analytics is the analyst performing?

A. Descriptive
B. Predictive
C. Prescriptive
D. Diagnostic

正解：A

解説：
Descriptive analytics is the type of analytics that summarizes and visualizes data to provide an overview of what has happened or is happening. Descriptive analytics uses techniques such as statistics, charts, graphs, and dashboards to display data in an understandable and meaningful way. Descriptive analytics can help analysts explore data, identify patterns, and communicate insights. Calculating theaverage, median, and mode values for a dataset is an example of descriptive analytics, as it provides a measure of central tendency for the data distribution. References:
* Certification in Business Data Analytics (IIBA ® - CBDA), IIBA, accessed on January 20, 2024.
* Business Data Analytics Certification - CBDA Competencies | IIBA®, IIBA, accessed on January 20,
2024.
* Guide to Business Data Analytics, IIBA, 2020, p. 15.
* The 4 Types Of Analytics Explained (With Examples), Analytics for Decisions, accessed on January 20,
2024.

質問 # 91
After completing their data analysis, an analyst is drawing out the results, explaining the methods and processes used, and identifying any limitations or weaknesses in the data or methods applied. While performing these steps, which recommended practice would the analyst apply?

A. Learn a variety of visualization techniques for effective communications
B. Use exploratory analysis to determine the best mathematical method to use
C. Understand the communication needs of stakeholders
D. Let the data drive the conclusions and the insights reached

正解：C

解説：
According to the IIBA® Guide to Business Data Analytics, communication is a key skill for analysts, as it involves conveying the results, methods, and limitations of the data analysis to various stakeholders in a clear, concise, and meaningful way. To communicate effectively, analysts need to understand the communication needs of stakeholders, such as their level of interest, knowledge, and influence, their preferred format and frequency of communication, and their expectations and objectives. Byunderstanding the communication needs of stakeholders, analysts can tailor their messages, choose the appropriate language and tone, and select the most suitable communication channels and media. Therefore, the correct answer is B, as understanding the communication needs of stakeholders is a recommended practice for analysts while performing the steps of drawing out the results, explaining the methods and processes used, and identifying any limitations or weaknesses in the data or methods applied.
References: : [IIBA® Guide to Business Data Analytics], Chapter 4: Business Data Analytics Techniques, page 49, : [IIBA® Guide to Business Data Analytics], Chapter 5: Business Data Analytics Competencies, page
63-64, : [IIBA® Guide to Business Data Analytics], Chapter 6: Business Data Analytics Communication, page
71-72

質問 # 92
A database analyst is modelling a database for a large toy manufacturer. Which statement describes a logical database model?

A. A model that depicts the actual design of the relational database
B. Modelling that involves objects being defined at the schema level
C. An abstraction of the conceptual data model that includes rules of normalization
D. The layer of views created to summarize data or provide another perspective of certain data

正解：C

解説：
A logical database model is a data model of a specific problem domain expressed independently of a particular database management product or storage technology. It describes data using notation that corresponds to a data organization used by a database management system, such as relational tables and columns. It also includes rules of normalization, which are the process of converting complex data structures into simple, stable data structures12 References: 1: Logical schema - Wikipedia 2: What Is a Data Model? | Coursera

質問 # 93
A data scientist is working with a team of upper level managers to develop a strategy for creating an enterprise analytics program. What critical success factor would help ensure the organization obtains the most value from its data?

A. A sponsor is identified that helps champion the work
B. Management is aware of the value of data science and ensures support for all tactical initiatives
C. Management thinks analytically and fosters a culture where data science thrives
D. The data science team supports the functional units and priorities

正解：C

解説：
According to the Introduction to Business Data Analytics: An Organizational View, one of the critical success factors for creating an enterprise analytics program is to have a management team that thinks analytically and fosters a culture where data science thrives. This means that the management team should understand the potential value and impact of data science, promote a data-driven mindset and decision-making process, encourage innovation and experimentation, and support collaboration and learning among the data science team and other stakeholders. A management team that thinks analytically and fosters a culture where data science thrives can help create a strategic vision, align the goals and objectives, allocate the resources and investments, and overcome the challenges and barriers for the enterprise analytics program.
References: Introduction to Business Data Analytics: An Organizational View, page 8-9; CBDA Exam Blueprint, page 8; Guide to Business Data Analytics, page 85-86.

質問 # 94
......

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IIBA CBDA関連復習問題集貴方達の試験に合格させることができないと、すぐに全額で返金いたします、IIBA CBDA関連復習問題集経済的な補償のメカニズムが作成されているからです、IIBA CBDA関連復習問題集当社の資料は、実際の運用試験の雰囲気をシミュレートし、試験をシミュレートできます、シラバスと新しいトレンドを分析することで、CBDA練習エンジンは、参考のためにこの試験に完全に一致しています、CBDAはIIBAのひとつの認証で、CBDAがIIBAに入るの第一歩として、CBDA「Certification in Business Data Analytics (IIBA - CBDA)」試験がますます人気があがって、CBDAに参加するかたもだんだん多くなって、しかしCBDA認証試験に合格することが非常に難しいで、君はCBDAに関する試験科目の問題集を購入したいですか、もしJpshikenのIIBAのCBDA試験トレーニング資料を購入した後、学習教材は問題があれば、或いは試験に不合格になる場合は、私たちが全額返金することを保証いたしますし、私たちは一年間で無料更新サービスを提供することもできます。

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当社の資料は、実際の運用試験の雰囲気をシミュレートし、試験をシミュレートできます、シラバスと新しいトレンドを分析することで、CBDA練習エンジンは、参考のためにこの試験に完全に一致しています、CBDAはIIBAのひとつの認証で、CBDAがIIBAに入るの第一歩として、CBDA「Certification in Business Data Analytics (IIBA - CBDA)」試験がますます人気があがって、CBDAに参加するかたもだんだん多くなって、しかしCBDA認証試験に合格することが非常に難しいで、君はCBDAに関する試験科目の問題集を購入したいですか？