Your AI Wingman for your next interview

The most comprehensive bank Interview Answer Review tooling available online.

Cutting-edge AI technology meets personalized feedback. Improve your interview answers with insightful guidance provided by a model trained against more than a million human-labelled interview answers.

Company rubrics
Role-level optimisations
Trained on 1mil+ answers

ML Knowledge

a year ago

How do you use cross-validation to evaluate the performance of a machine learning model?

Data Scientist

Optimizely

Walmart

Ancestry

Get answer reviewed by AI

a year ago

Behavioral

a year ago

Tell me about a performance rating that you disagreed with.

Data ScientistFull Stack Software EngineerData AnalystData Engineering Manager

Optimizely

Magic Leap

Proofpoint

Get answer reviewed by AI

a year ago

SQL

a year ago

Given a list of (date, duration) tuples, what is your process for filtering by time period and then calculating summary statistics such as the average duration and rolling sum?

Data Scientist

Optimizely

Samsara

GitLab

Get answer reviewed by AI

a year ago

Coding

2 years ago

What approach would you take to interleave two sorted arrays into a consolidated sorted array?

Data Scientist

Optimizely

Palo Alto Networks

Square

Get answer reviewed by AI

2 years ago

Statistics

2 years ago

Could you create a dataset of 1000 points following a normal distribution with specified mean and variance, analyze it with summary statistics, and illustrate the distribution with a density plot?

Data Scientist

Optimizely

WeWork

Bolt

Get answer reviewed by AI

2 years ago

ML Knowledge

2 years ago

Can you explain how you tackle data skew in model performance evaluations and the metrics that are useful in such situations?

Data ScientistMachine Learning Engineer

Optimizely

SeatGeek

Chime

Get answer reviewed by AI

2 years ago

Statistics

2 years ago

Can you demonstrate how to quantify occurrences in a Markov chain's n-step run?

Data Scientist

Optimizely

Meta

Slack

Get answer reviewed by AI

2 years ago

Optimizely

Teradata

Uber

Get answer reviewed by AI

2 years ago

ML CaseML Knowledge

2 years ago

What is your experience with NLP mechanisms, including recommender systems.

Data Scientist

Optimizely

Rakuten

Cisco

Get answer reviewed by AI

2 years ago

Behavioral

2 years ago

Tell me about a time when you failed badly and what you learned from it?

Data ScientistProduct ManagerBackend EngineerTechnical Program Manager

Optimizely

JoyTunes

N26

Get answer reviewed by AI

2 years ago

Question of the week

We'll send you a weekly question to practice for:

Showing 71 to 80 of 178 results

^*All interview questions are submitted by recent Optimizely Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Optimizely.

The most comprehensive bank Interview Answer Review tooling available online.

Question of the week

Interview Guides

Please log in to view more questions.