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I want you to tell me about a time you showed initiative.

What safeguards can you put in place to minimize the impact of random variables that could influence the results of the control and variant groups in an A/B test?

Tell me about a time when you disagreed with a team member's approach.

What is meant by heteroscedasticity?

Find the 18th largest element in a given array

What type of people do you thrive with when working within a team?

When Meta had solely 'Comment' and 'Like' functionalities, how might you design a test to assess the incorporation of additional emotive reactions such as 'care' or 'sad'? What's your strategy for formulating an A/B test in this case?

How did you learn from an experience when you failed badly?

If you are working on a clustering task where the labels are already known, how would you determine the effectiveness of the model?

Please discuss the practical implications of using CNN and the fields where it sees the most adoption.