The most comprehensive bank Interview Answer Review tooling available online.

What do you think are your top three personality traits that make you successful? How do they align with Duolingo?

If you were to flip a coin repeatedly, what minimum percentage of times should it land on heads to be considered a fair coin?

What do you think does Duolingo values in its employees?

Could you demonstrate how to produce a Bernoulli-distributed matrix in Python and normalize each element by column totals?

Can you outline your process for evaluating whether a Gaussian mixture model is appropriate for a specific data set?

Could you provide an analogy that would help a non-technical person understand the P-value?

Can you discuss some of the consequences of ignoring multicollinearity in regression analysis?

Assume you have a square grid of known size and each spot in a grid as a number of some real value. If you start at the top left corner and can only go down or right, what it the maximum number you can obtain once you reach the bottom left?

Is there a way to confirm if a coin is biased without testing it in a large sample size?

What do you do to make yourself stand out?