C3 AI Data Scientist Interview Questions
Master your tech interview with our curated database of real questions from top companies.
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...
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...
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...
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...
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...