10/7/2024 11:03AM
GDA Course 4 Exam Questions With Correct
Answers
Which of the following principles are key elements of data integrity? Select all that apply.
-Consistency
-Accuracy
-Selectivity
-Trustworthiness - answer✔-Consistency
-Accuracy
-Trustworthiness
Which process do data analysts use to make data more organized and easier to read? -
answer✔Data Manipulation
Before analysis, a company collects data from countries that use different date formats. Which of
the following updates would improve the data integrity?
-Remove data in an unfamiliar date format
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-Leave the dates in their current formats
-Organize the data by country
-Change all of the dates to the same format - answer✔-Change all of the dates to the same format
What should an analyst do if they do not have the data needed to meet a business objective?
Select all that apply.
-Continue with the analysis using data from less reliable sources.
-Create and use hypothetical data that aligns with analysis predictions.
-Gather related data on a small scale and request additional time to find more complete data.
-Perform the analysis by finding and using proxy data from other datasets. - answer✔-Gather
related data on a small scale and request additional time to find more complete data.
-Perform the analysis by finding and using proxy data from other datasets.
Which of the following are limitations that might lead to insufficient data? Select all that apply.
-Data that updates continually
-Data from a single source
-Outdated data
-Duplicate data - answer✔-Data that updates continually
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10/7/2024 11:03AM
-Data from a single source
-Outdated data
A data analyst wants to find out how many people in Utah have swimming pools. It's unlikely
that they can survey every Utah resident. Instead, they survey enough people to be representative
of the population. This describes what data analytics concept?
-Margin of error
-Statistical significance
-Confidence level
-Sample - answer✔-Sample
A research team runs an experiment to determine if a new security system is more effective than
the previous version. What type of results are required for the experiment to be statistically
significant?
-Results that are unlikely to occur again
-Results that are real and not caused by random chance
-Results that are hypothetical and in need of more testing