Free IIBA CBDA Exam Questions

An analyst is looking at a particular dataset that includes the scores across all 8th grade students, across three schools. The analyst is trying to determine which type of statistics average to use to best represent the results. On looking through the dataset, the analyst has identified a few extreme outliers. As a result, the analyst was led to use the following type of average: 

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?

A company wants to gauge the thoughts of their employees towards a new company product. On the 25th of March the interviewer makes a list of all employees who were at work on that day and then chooses a subset of those employees to interview. Which term describes the list of all employees present on March 25th? 

The analytics team is struggling with which recommendation to make. Their challenge is that they have five good options and this indecision is stopping them from moving forward. To help the team finalize their recommendation, the BA professional on the team recommends they complete: 

A Data Dictionary is being developed for an employee database. When reviewing the data dictionary, the analyst recommends adding another primitive data element. Which element would be suggested?