Amazon Data Science interview questions

The first round was a phone screening. I was asked about my work experience and a coding question on count of frequent words in a stream of text. The virtual onsite interview had 6 rounds of 1 hour interviews. Round1: Leadership principles and then a coding session. The question was to get the count of rows based on a criteria. Round 2: Technical presentation on a project you did in the past Round3: Leadership questions and questions on data science scenarios. Try to ask as many as questions you can. Round 4: Leadership questions and basic machine learning concepts like difference between bagging and boosting, What is naive bayes, explain p-value in layman terms, what is a normal distribution. Round 5: LP questions and very simple sql queries Round 6: Completely leadership questions

Initial phone screening with a recruiter. Few days later, I got another interview request from the recruiter. Then, I had 2 phone interviews with team member and a project manager.