DA0-001 Analyst Practice Questions
The free DA0-001: Data questions that deal with analyst, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #7
During data cleansing, an analyst conducts measures of central tendency on a data set. Which of the following data is the analyst attempting to identify?
Correct answer: C
Explanation
Measures of central tendency show the typical value, so readings far from the mean or median stand out as outliers that may need cleansing.
Question #9
An analyst reviews the following data: 7 3 5 2 3 7 7 10 Which of the following is the value of the mode?
Correct answer: C
Explanation
The mode is the value that appears most frequently in a data set. In the provided data set, the number 7 appears three times, which is more than any other number. Therefore, the mode of this data set is 7. • 3 appears twice, but less frequently than 7. • 5 and 10 each appear only once, so they cannot be the mode. References: • Mode in Statistics - Definition and Examples1 • Understanding Measures of Central Tendency2 • Mode (statistics) - Wikipedia3
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