Explain Bayes’ Theorem and P-Value in Decision-Making
Company: Lyft
Role: Data Scientist
Category: Statistics & Math
Difficulty: easy
Interview Round: Technical Screen
##### Scenario
During a product review, stakeholders ask for a clear explanation of foundational statistical concepts used in decision-making.
##### Question
State Bayes’ theorem and illustrate its use with a simple example. 2. Explain in plain language what a p-value is and what conclusions it does and does not allow.
##### Hints
Focus on prior, likelihood, posterior intuition; p-value as probability of observing data under the null.
Overview: Explain Bayes’ Theorem and P-Value in Decision-Making evaluates statistical assumptions, formulas, estimation strategy, uncertainty, edge cases, and interpretation in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.