Quantitative Trader Interview Questions

1,130 quantitative trader interview questions shared by candidates

A bag has three coins in it which are visually indistinguishable, but when flipped, one coin has a 10% chance of coming up heads, another as a 30% chance of coming up heads, and the last has 60% chance of coming up heads. I randomly draw a coin from the bag and flip it, and the result comes up heads. What is the probability that if I reflip this coin, it will come up heads again? Why?
avatar

Quantitative Trader Intern

Interviewed at Jane Street

4.4
Jan 13, 2021

A bag has three coins in it which are visually indistinguishable, but when flipped, one coin has a 10% chance of coming up heads, another as a 30% chance of coming up heads, and the last has 60% chance of coming up heads. I randomly draw a coin from the bag and flip it, and the result comes up heads. What is the probability that if I reflip this coin, it will come up heads again? Why?

Viewing 821 - 830 interview questions

Glassdoor has 1,130 interview questions and reports from Quantitative trader interviews. Prepare for your interview. Get hired. Love your job.