C3 Ai Data Scientist Interview Questions
Practice the exact questions companies are asking right now.
Describe challenge, influence, and mentorship outcomes
Answer three parts using the STAR method and concrete metrics: (1) Most challenging project: what was the goal, constraints, and your specific ownersh...
Find longest substring with at least k repeats
Longest substring where each character appears at least k times You are given: - a string s consisting of lowercase English letters - an integer k Ret...
Answer regression error and coin toss expectation
Multiple choice: Regression assumptions + expectation Answer the following. 1) Linear vs. Logistic Regression “error” statements Which statement is mo...
Identify a classic bagging algorithm
Multiple choice: Bagging Which of the following algorithms is a classic example of bagging (bootstrap aggregating)? A. Random Forest B. Gradient Boo...
Decompress an encoded string
Given an encoded string, return its decoded (decompressed) form. Use the following encoding rule: - A positive integer \(k\) followed by a bracketed s...
Explain key ML/stats concepts
You are taking an ML/Stats screening with conceptual multiple-choice questions. Answer the following: 1. CNN vs. RNN - What kinds of input structur...