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| Section | Weight | Objectives |
|---|---|---|
| Data Governance, Quality, and Controls | 14% | - Security, privacy, and compliance considerations - Data quality management - Data governance frameworks |
| Data Mining | 25% | - Pattern identification and extraction - Data transformation and profiling - Data acquisition and cleaning techniques |
| Data Analysis | 23% | - Data interpretation and reporting - Statistical methods and calculations - Trend and correlation analysis |
| Data Concepts and Environments | 15% | - Data sources and acquisition methods - Data structures and file formats - Data concepts and terminology |
| Visualization | 23% | - Visualization best practices - Tool-based visualization techniques - Chart and dashboard creation |
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NEW QUESTION # 13
A publishing group has requested a dashboard to track submissions before publication. A key requirement is that all changes are tracked, as multiple users will be checking out documents and editing them before submissions are considered final. Which of the following is the BEST way to meet this stakeholder requirement?
Answer: B
Explanation:
Explanation
A static report is a type of report that shows a snapshot of data at a specific point in time. A static report does not change or update automatically, unless the data source is refreshed or the report is regenerated. A static report is suitable for situations where the data does not change frequently or where historical data is needed for comparison or analysis. In this case, the data analyst is asked to create a sales report for the second-quarter
2020 board meeting, which will include a review of the business's performance through the second quarter.
The board meeting will be held on July 15, 2020, after the numbers are finalized. This means that the data analyst does not need to show real-time or dynamic data, but rather a fixed and accurate view of the sales data for the second quarter. Therefore, a static report would be the best way to meet this stakeholder requirement.
Therefore, the correct answer is A. References: What are Static Reports? | Sisense, Static vs Dynamic Reports
- What's The Difference? | datapine
NEW QUESTION # 14
An analyst is designing a dashboard that will provide a story of the sales and sales customer ratio. The following data is available:
Which of the following charts should the analyst consider including in the dashboard?
Answer: A
Explanation:
For a dashboard that aims to tell a story about sales and the sales customer ratio, a column chart is an effective choice. Column charts are particularly useful for showing data changes over a period of time or for illustrating comparisons among items. In this case, a column chart can clearly display the sales figures for each site, allowing for easy comparison across different sites. Additionally, it can be used to represent the sales customer ratio by showing the proportion of sales per customer, which can provide insights into customer behavior and sales effectiveness.
* Line charts are best suited for displaying data trends over time, rather than for comparing individual categories.
* Pie charts could show the proportion of sales for each site, but they are not as effective as column charts for comparing multiple categories.
* Scatter charts are used to show the relationship between two variables, which is not the focus in this scenario.
References:
* Effective Use of Column Charts1
* Choosing the Right Chart for Your Data2
* Sales Dashboards: Examples & Templates3
NEW QUESTION # 15
Which of the following occurs if a 90% confidence interval increases to 95%?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
A confidence interval provides a range within which we expect a population parameter to lie, based on sample data. Increasing the confidence level means we want to be more certain that the interval contains the parameter, which affects the margin of error.
Option A:The margin of error does not change.
* Rationale:This is incorrect. Increasing the confidence level requires a wider interval to maintain the higher degree of certainty, which increases the margin of error.
Option B:The interval remains the same.
* Rationale:This is incorrect. To achieve a higher confidence level, the interval must widen, altering its range.
Option C:The interval becomes narrower.
* Rationale:This is incorrect. A higher confidence level necessitates a wider interval to ensure the parameter is captured within the range.
Option D:The margin of error increases.
* Rationale:Correct. Increasing the confidence level from 90% to 95% means we are more confident that the interval contains the true parameter. To achieve this increased confidence, the margin of error must increase, resulting in a wider interval.
NEW QUESTION # 16
Given the following grocery store orders:
If a query is made to the table with the following logic:
Order_Total > 132 OR (Order Total >= 25 AND Order_Total < 74)
Which of the following is the number of orders that will be returned by the query?
Answer: C
Explanation:
Based on the query logic provided: Order_Total > 132 OR (Order Total >= 25 AND Order_Total < 74), we can manually determine which order totals fit this criteria. By examining the image, these are the Order_Total values that match:
132.49 (greater than 132)
108.99 (greater than or equal to 25 and less than 74)
96.19 (greater than or equal to 25 and less than 74)
74.49 (greater than or equal to 25 and less than 74)
41.99 (greater than or equal to 25 and less than 74)
31.29 (greater than or equal to 25 and less than 74)
Thus, six orders satisfy the given conditions.
NEW QUESTION # 17
A junior web developer is developing a new application where users can upload short videos. The first task is to create a homepage that shows the headline "Upload Your Short Videos" and a clickable button that says
"upload now".
Which of the following HTML commands would help the developer to complete the task successfully?
Answer: B
Explanation:
The HTML commands that would help the developer to complete the task successfully are <h1>Upload Your Short Videos</h1> and <button>upload now</button>. The <h1> tag defines a heading level 1, which is the largest and most important heading on a webpage. The <button> tag defines a clickable button that can perform some action when clicked. The other options are not suitable for the task, as they either use the wrong tags or do not create a clickable button. The <span> tag defines a section of text with no specific meaning or formatting. The <p> tag defines a paragraph of text. The <hl> tag does not exist in HTML. Reference: HTML Tags - W3Schools
NEW QUESTION # 18
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