: How does automatic garbage collection work in languages like Python or Java? Why do high-frequency trading (HFT) platforms avoid it?
: How do you approximate or bound the tail probability for a standard normal random variable when Buffon’s Needle : A needle of length
3. Stochastic Calculus and Mathematical Finance (30 Questions)
These questions isolate your raw mathematical tools. Expect deep dives into matrix properties, regressions, and calculus proofs. Linear Algebra & Matrix Math 150 Most Frequently Asked Questions On Quant Interviews
A medical test is 99% accurate (sensitivity and specificity). A disease affects 0.1% of the population. If a patient tests positive, what is the actual probability they have the disease?
Write out the multi-variable Taylor expansion of a function around the point up to second-order terms.
A revolver has two consecutive bullets in a 6-shot cylinder. The first player spins, shoots at their head, and it clicks (empty). Should the second player spin again or just pull the trigger? : How does automatic garbage collection work in
: Define Delta, Gamma, Vega, Theta, and Rho for an option. What do they represent intuitively, and how do traders use them for portfolio hedging?
: Explain Big-O notation. What is the average and worst-case time complexity of QuickSort, MergeSort, and HeapSort?
is dropped onto a floor with parallel lines spaced a distance ). What is the probability the needle crosses a line? : A bag has red balls and black balls. You draw A disease affects 0
State the Central Limit Theorem. What are the explicit assumptions regarding the underlying independent variables?
floors. Each person chooses their destination floor independently and uniformly at random. What is the expected number of stops the elevator will make? 2. Linear Algebra and Calculus (25 Questions)