Data Scientist Software Engineering Fundamentals Interview Questions
Practice 10 real Software Engineering Fundamentals interview questions for Data Scientist roles. From companies including Bnp, Imc, J.P. Morgan, Morgan Stanley.
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Compute the Probability for Two Uniform Variables
Let \(X\) and \(Y\) be independent random variables, each uniformly distributed on \([0,1]\). Define: - \(L = \max(X,Y)\) - \(S = \min(X,Y)\) What is ...
Compute expected max/min of n die rolls
You roll a fair six-sided die n times independently. 1) Compute the expected value of the maximum roll. 2) Compute the expected value of the minimum r...
Explain C++ virtual dispatch and object lifetime
Answer the following C++ fundamentals questions. 1) Virtual function dispatch: predict output Consider this C++ program: `cpp #include <iostream> usin...
Find expected tosses to see a coin pattern
A fair coin is tossed repeatedly until a target length-3 pattern appears as a consecutive substring (e.g., HHH, HTH, HTT, etc.). 1) Describe a general...
Explain and compute option delta
In options trading, what is an option’s delta? 1) Give the definition of delta and explain its intuition/sign for calls vs puts. 2) Under the Black–Sc...
Estimate Greeks and hedging PnL
Consider a vanilla European option under the Black-Scholes framework. 1. Without using a calculator, explain how you would mentally estimate the optio...
How do you split coins to match heads?
There are N coins on a table. You are told that exactly H of them are heads-up (you do not know which ones). You must split the coins into two piles s...
Compute expected value of simple gambling games
You are asked two probability/EV questions. 1) Dice game expected value / fair entry fee A game works as follows: - You pay an entry fee of \(c\) doll...
Find valid range of q for outcome probabilities
You have a 3-outcome experiment with mutually exclusive outcomes: - Outcome 1 occurs with probability \(q\) - Outcome 2 occurs with probability \(q^2\...
Explain forward contracts and options
In a finance-focused technical interview, you are asked to explain two basic derivative instruments: 1. What is a forward contract? 2. What is an opti...