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Develop an SQL query that uses a join between the "orders" and "customers" tables to calculate the average order value for United States-based customers who have made 3 or more orders in the last month.

How did you deal with the challenges you faced in a previous position where you had a lot of responsibility?

Could you provide an example of when you tried to convince someone of an idea? What happened?

Consider an array of sorted integers from 0 to n. Your task is to find the integer that introduces a problem. Write a function that accomplishes this task with a time complexity of O(log n).

Do you find it difficult to manage your workload in your current position?

What would be your strategy for balancing affordability for riders and making a profit for our company?

Outline the working principles of a 1D CNN.,

What did you learn from a recent failure? How has this failure made you a better Data Scientist?

Would you mind explaining Markov Chains in terms that are accessible to the everyday person?

How do you perceive the role of bootstrapping in statistical sampling, and is it beneficial for increasing sample sizes?