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Question 194 - DA0-001 discussion

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Refer to the exhibit.

Given the following:

Which of the following is the most important thing for an analyst to do when transforming the table for a trend analysis?

A.
Fill in the missing cost where it is null.
Answers
A.
Fill in the missing cost where it is null.
B.
Separate the table into two tables and create a primary key
Answers
B.
Separate the table into two tables and create a primary key
C.
Replace the extended cost field with a calculated field.
Answers
C.
Replace the extended cost field with a calculated field.
D.
Correct the dates so they have the same format.
Answers
D.
Correct the dates so they have the same format.
Suggested answer: D

Explanation:

Correcting the dates so they have the same format is the most important thing for an analyst to do when transforming the table for a trend analysis. Trend analysis is a method of analyzing data over time to identify patterns, changes, or relationships. To perform a trend analysis, the data needs to have a consistent and comparable format, especially for the date or time variables.

In the example, the date purchased column has two different formats: YYYY-MM-DD and MM/DD/YYYY. This could cause errors or confusion when sorting, filtering, or plotting the data over time. Therefore, the analyst should correct the dates so they have the same format, such as YYYYMM-DD, which is a standard and unambiguous format.

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asked 02/10/2024
Govinda Bhikha
38 questions
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