Free CompTIA DA0-001 Practice Test & Real Exam Questions
Joseph is interpreting a left skewed distribution of test scores. Joe scored at the mean, Alfonso scored at the median, and gaby scored and the end of the tail.
Who had the highest score?
Who had the highest score?
Correct Answer: C
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A data analyst is creating a dashboard and trying to identify the type of information that should be included.
Which of the following should the analyst consider first?
Which of the following should the analyst consider first?
Correct Answer: B
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An analyst conducted a preliminary analysis for a data set and identified several patterns and anomalies.
Which of the following analysis techniques did the analyst use?
Which of the following analysis techniques did the analyst use?
Correct Answer: C
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Which of the following data types is best for representing count data?
Correct Answer: D
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An analyst runs a report on a daily basis, and the number of datapoints must be validated before the data can be analyzed. The number of datapoints increases each day by approximately 20% of the total number from the day before. On a given day, the number of datapoints was 8,798. Which of the following should be the total number of datapoints on the next day?
Correct Answer: D
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An analyst is currently working on a ticket to revamp a company-wide dashboard that has been in use for five years. Which of the following should be the first step in the development process?
Correct Answer: C
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A customer survey reveals 90% positive feedback. Which of the following statistical methods would be best to utilize to determine the reliability of a data set and predict how a larger sample of customers over the same time period might respond?
Correct Answer: A
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An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:
Which of the following charts would be BEST to use?
Which of the following charts would be BEST to use?
Correct Answer: B
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Which of the following describes the method of sampling in which elements of data are selected randomly from each of the small subgroups within a population?
Correct Answer: C
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Which of the following is an example of a strategy to reduce statistical errors?
Correct Answer: A
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A user receives a large custom report to track company sales across various date ranges. The user then completes a series of manual calculations for each date range. Which of the following should an analyst suggest so the user has a dynamic, seamless experience?
Correct Answer: C
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A data analyst is setting up a data dashboard to monitor several ETL data streams to ensure that data is complete for later analysis. Which of the following audiences should the analyst target for this dashboard?
Correct Answer: A
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An analyst wants to determine whether a relationship between an individual's age and voting preferences exists. Which of the following is the best statistical method for the analyst to use?
Correct Answer: D
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Given the following data sample:
Which of the following best describes the data quality issue?
Which of the following best describes the data quality issue?
Correct Answer: A
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A data analyst received the information in the table below from a recently completed marketing campaign:
Which of the following is the total order conversion rate?
Which of the following is the total order conversion rate?
Correct Answer: B
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