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CompTIA DA0-001 exam covers a wide range of topics related to data management, including data quality, database design, data warehousing, and data governance. DA0-001 exam is divided into two parts, where the first part covers the fundamentals of data management, while the second part focuses on advanced data management concepts. DA0-001 Exam is designed to test the knowledge and skills of individuals who have experience working with different types of databases, data models, and data analysis tools.

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CompTIA Data+ Certification Exam Sample Questions (Q383-Q388):

NEW QUESTION # 383
A data analyst has removed the outliers from a data set due to large variances. Which of the following central tendencies would be the best measure to use?

Answer: B

Explanation:
The median is recognized as the most appropriate measure of central tendency when outliers have been removed from a dataset. This is because the median is less influenced by extreme values compared to the mean. When outliers are present, they can significantly skew the mean, making it an unreliable measure of central tendency. The median, on the other hand, is the middle value of a dataset when ordered from least to greatest and remains unaffected by the extremes. Therefore, it provides a better representation of the central location of the data after outliers have been excluded.
References:
* Guidelines for Removing and Handling Outliers in Data1.
* Mean, Median, and Mode: Measures of Central Tendency2.
* Which measure of central tendency should be used when there is an outlier?3.
* How are measures of central tendency affected by outliers?4.


NEW QUESTION # 384
Given the following data table:

Which of the following are appropriate reasons to undertake data cleansing? (Select two).

Answer: B,F


NEW QUESTION # 385
A Chief Executive Officer (CEO) is requesting more up-to-date sales data for improved visibility prior to month-end. An analyst must determine the frequency of a sales report that was previously distributed on an as-needed basis. Which of the following would be the most appropriate frequency for this report?

Answer: B

Explanation:
The most appropriate frequency for the sales report is weekly, as this will provide the CEO with more up-to-date sales data for improved visibility prior to month-end. A weekly sales report can show the sales performance, trends, and issues of the sales team on a regular basis, and help the CEO to monitor and evaluate the progress and results of the sales activities. A weekly sales report can also help the CEO to identify and address any problems or opportunities that may arise during the month, and to make timely and informed decisions.


NEW QUESTION # 386
While reviewing survey data, a research analyst notices data is missing from all the responses to a single question. Which of the following methods would BEST address this issue?

Answer: B


NEW QUESTION # 387
Which of the following is the correct data type for text?

Answer: D


NEW QUESTION # 388
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