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What's your method for unpacking a string with compounded parenthetical expressions like “2[a3[b]c]”?

Based on what you know, do you think it's more likely or less likely that your friend's other child is also a boy?

How would you design an LRU cache to ensure that it efficiently stores and retrieves the most recently used items?

How do you calculate the interquartile range from an unsorted array of decimal numbers?

Can you outline the stages of implementing a machine learning model into a production environment?

Can you differentiate between the use of window functions, aggregate functions, and joins in SQL?

Write code to implement a text wrapper that takes in a long string and a character limit as inputs and returns a list of strings, where each string is limited to the specified number of characters, split only at spaces. For example, if the input string is "This is a long sentence that needs to be wrapped", and the character limit is 10, the output should be a list with three strings: ["This is a", "long", "sentence that", "needs to be", "wrapped"].

How is outlier detection performed and why is it important?

What is meant by the concepts of parametric and non-parametric approaches in statistical analysis, and how do these two methods differ in their assumptions and applicability?

How would you go about identifying the top 5 best sellers from a collection of order histories?