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The marketing department for a major restaurant chain is interested in testing a Kids Eat Free campaign to
determine if it will help to increase sales. They are interested in piloting the campaign to determine which day
of the week will improve sales the most.
The campaign is launched across 7 cities with each city promoting a different day of the week. The sales data
is collected and provided to a team for analysis. What concern might the analytics team have regarding data
quality across cities?
An analytics team employed at a leading credit card company is utilizing data analytics to identify unusual credit card purchases. They have created the following visual. How many extreme outliers exists in this dataset?
The results for a certification exam were revealed in percentage and percentile. How would you infer the
results for an attendee at: 75%, 90th percentile?
While creating a dataset for analysis, the analyst reviews the data collected and finds a large percentage of
records are missing values. Which activity would the analyst perform in order to use this dataset?
There were 7 students enrolled in the Introduction to Artificial Intelligence course. The scores from the final
exam were as follows: 64, 70. 80, 80, 90, 98, 100
What is the mean and median for the outlined scores?
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