question stringlengths 11 711 | domain stringclasses 8 values | company stringclasses 30 values | year float64 2.02k 2.02k ⌀ | coding stringclasses 2 values | personal_exp stringclasses 2 values | category float64 0 1 |
|---|---|---|---|---|---|---|
Describe any hurdles you have overcome while working with supervised machine learning, and how did you overcome them? | Data Science | Chime | null | no | no | 0 |
Describe regression to an executive with no background in statistics. | Data Science | Chime | null | no | no | 0 |
Did you ever make a decision that did not go as planned? What did you learn from this experience? | Data Science | Chime | null | no | yes | 0 |
Do you know what words from the given list are blanagrams - debit card and bad credit? | Data Science | Chime | null | no | no | 0 |
Explain Support Vector Machine in detail. | Data Science | Chime | null | no | no | 0 |
Explain the difference between the frequentist and Bayesian approach to probability. How would you decide which approach to use in a given situation? | Data Science | Chime | null | no | no | 0 |
From your point of view, what are some key elements to consider when constructing a metric to compare two user's Netflix recommended lists of movie/tv show preferences? | Data Science | Chime | null | no | no | 0 |
Give an instance of how you convinced someone of an idea. | Data Science | Chime | null | no | no | 1 |
Given an array of integers, how would you go about identifying the subarray of length k with the highest possible sum? | Data Science | Chime | null | no | no | 0 |
Given four consenting adults on an elevator in a four-story building, what is the probability that they will each get off on a different floor? | Data Science | Chime | null | no | no | 0 |
How are k-means and KNN distinct from each other in terms of their applications? | Data Science | Chime | null | no | no | 0 |
How can you check if the assignment to A/B test buckets was truly random? | Data Analytics | Chime | null | no | no | 0 |
How can you map a character array indicating mines to an integer array that counts adjacent mines in minesweeper? | Data Science | Chime | null | no | no | 0 |
How can you retrieve the set of distinct communicators in the SQL table messages with columns id, sender_id, receiver_id, and message? | Data Science | Chime | null | no | no | 0 |
How did you handle a situation where you couldn't meet a deadline? | Data Science | Chime | null | no | no | 1 |
How do you approach gradient issues in Machine Learning, particularly the vanishing and exploding problems? | Data Science | Chime | null | no | no | 0 |
How do you ascertain the longest substring devoid of repeating characters within a string? | Data Science | Chime | null | no | no | 0 |
How do you envision yourself in the next 5 years? | Data Science | Chime | null | no | no | 1 |
How do your near term objectives contribute to your long term objectives? | Data Science | Chime | null | no | no | 1 |
How does random forest generate the forest and why use it over logistic regression? | Data Analytics | Chime | null | no | no | 0 |
How does the assumption of error in linear regression influence the accuracy of our models, and what does it entail? | Data Science | Chime | null | no | no | 0 |
How have you previously measured monthly retention using data like this? | Data Science | Chime | null | no | no | 0 |
How many days, on average, do you expect it would take to draw a value greater than 2 if you were randomly drawing from a normal distribution with a mean of 0 and a standard deviation of 1 once per day? | Data Science | Chime | null | no | no | 0 |
How well do you know Chime? | Data Science | Chime | null | no | no | 0 |
How would you assess the validity of an A/B test result with a 0.04 p-value? | Data Analytics | Chime | null | no | no | 0 |
How would you design a model for fraud detection in machine learning? | Machine Learning | Chime | null | no | no | 0 |
How would you differentiate between the standard error of the mean and the median? | Data Science | Chime | null | no | no | 0 |
How would you go about dimensionality reduction for a feature with very high dimensionality? | Machine Learning | Chime | null | no | no | 0 |
How would you set up an A/B test to optimize button color and position for higher click-through rates? | Data Analytics | Chime | null | no | no | 0 |
I want to hear about a time you failed to achieve something you set out to do. What did you learn from a recent failure? How has this failure made you a better Data Science? | Data Science | Chime | null | no | no | 1 |
I want to hear about something you did that was risky. | Data Science | Chime | null | no | no | 1 |
I want to know an example of when you failed at work. | Data Science | Chime | null | no | no | 1 |
I would like you to describe a process that you learned or developed at your previous job that you think will be valuable to your future position with Chime | Data Science | Chime | null | no | no | 1 |
If there is a feature with very high dimensionality, how would you go about dimensionality reductions? | Machine Learning | Chime | null | no | no | 0 |
If you pick two balls in succession out of a container with 4 red balls and 2 blue balls, what is the probability that they will be different colors? | Data Science | Chime | null | no | no | 0 |
If you receive an offer from Chime, how long do you think you'll stay? | Data Science | Chime | null | no | no | 0 |
If you were tasked with developing a demand forecasting model for a ride-sharing service, what approach would you take? What data sources and factors would you consider, and how would you ensure the model's accuracy? | Data Science | Chime | null | no | no | 0 |
Illustrate how one might write a function to simulate a normal distribution and plot the results. | Data Science | Chime | null | yes | no | 0 |
In a programming language you are proficient in, how would you code a binary tree inversion? | Data Science | Chime | null | no | no | 0 |
In terms of SQL, what are the key differences between a left join, a right join, and a union? | Data Science | Chime | null | no | no | 0 |
In your experience, how do you go about finding the largest total within a contiguous subarray? | Data Science | Chime | null | no | yes | 0 |
In your opinion, how would you improve Chime? | Data Science | Chime | null | no | no | 1 |
Is there anything you do to make yourself stand out? | Data Science | Chime | null | no | no | 1 |
Is this Data Science role a good fit for your qualifications? | Data Science | Chime | null | no | no | 1 |
Let me know about a time when you had to act quickly. | Data Science | Chime | null | no | no | 1 |
Let us know about a time when you made a mistake at work. | Data Science | Chime | null | no | no | 1 |
Let's say you have a dice with X sides. Each side has a different probability of landing. Implement an algoirthm that simulates the rolling of the dice a given number of times. | Data Science | Chime | null | no | no | 0 |
Please give me an example of a time when you demonstrated initiative. | Data Science | Chime | null | no | no | 0 |
Please shed light on the different techniques used in sampling. | Data Science | Chime | null | no | no | 0 |
Please tell me about a time when you disagreed with a boss or an executive | Data Science | Chime | null | no | yes | 0 |
Share a project you are proud of. | Data Science | Chime | null | no | no | 1 |
Share a time when you had a disagreement with a member of your team. | Data Science | Chime | null | no | no | 1 |
Tell me about a difficult conflict you managed. | Data Science | Chime | null | no | no | 1 |
Tell me about a time when you disagreed with a team member's approach. | Data Science | Chime | null | no | yes | 0 |
Tell me about a time when you had multiple competing priorities. How did you handle this situation? | Data Science | Chime | null | no | yes | 1 |
Tell me about a time when you helped mentor a new joiner. | Data Science | Chime | null | no | yes | 1 |
Tell me about a time when you led a team | Data Science | Chime | null | no | yes | 1 |
Tell me about an experience when you led a team. | Data Science | Chime | null | no | yes | 1 |
Tell me something about you that isn't present on your resume. | Data Science | Chime | null | no | no | 1 |
Walk me through the process of differentiating between high variance and high bias in a machine learning model. | Data Science | Chime | null | no | no | 0 |
We'd like to know how Chime aligns with your long-term goals | Data Science | Chime | null | no | no | 1 |
What algorithmic steps are involved in combining two sorted arrays into one that is also sorted? | Data Science | Chime | null | no | no | 0 |
What are percentiles, and how would you go about computing the nth percentile of a dataset? Could you write the code for it? | Data Science | Chime | null | no | no | 0 |
What are the key differences between classification models and regression models? | Data Analytics | Chime | null | no | no | 0 |
What are the key differences between RNNs and LSTMs you could point out? | Data Science | Chime | null | no | no | 0 |
What are the steps involved in determining the correlation between a binary and continuous variable? | Data Science | Chime | null | no | no | 0 |
What are time series models, and why are they needed over simpler regression models? | Data Analytics | Chime | null | no | no | 0 |
What are you looking for in your next job? | Data Science | Chime | null | no | no | 0 |
What can you tell me about XGBoosting and its potential benefits? | Data Science | Chime | null | no | no | 0 |
Calculate the Average Account Balance. As a part of the finance team at Citigroup, you are required to analyze customers' usage of their accounts. Can you write a SQL query to calculate the average account balance for each type of account (Checking, Savings, Credit etc.) for the year 2022? | SQL | Citigroup | null | no | no | 0 |
Can you talk a bit about your projects and the challenges you faced while working on them | Data Analytics | Citigroup | null | no | yes | 1 |
Can you write an alternate solution to this? | SQL | Citigroup | null | no | no | 0 |
Create a query to compute the year-over-year growth rate of revenue for each product category. | SQL | Citigroup | null | no | no | 0 |
Describe a data project you worked on. What were some of the challenges you faced? | Data Analytics | Citigroup | null | no | yes | 1 |
Determine the Click-Through-Rate for Citigroup's Marketing Emails. Assume you are working as a Data Analytics for Citigroup. Citigroup sends out marketing emails to its customers regularly. | SQL | Citigroup | null | no | no | 0 |
Difference between bagging and boosting. | Data Analytics | Citigroup | null | no | no | 0 |
Due to an ETL error, the employees table, instead of updating the salaries every year when doing compensation adjustments, did an insert instead. Write a query to get the current salary for each employee. | Data Analytics | Citigroup | null | yes | no | 0 |
Explain Gini coefficient. | Data Analytics | Citigroup | null | no | no | 0 |
Explain L1 L2 regularization. | Data Analytics | Citigroup | null | no | no | 0 |
Explain PCA. | Data Analytics | Citigroup | null | no | no | 0 |
Explain regression models and their applications. | Data Analytics | Citigroup | null | no | no | 0 |
Explain the cost function and loss functions. | Data Analytics | Citigroup | null | no | no | 0 |
Explain the logistics regression process. | Data Analytics | Citigroup | null | no | no | 0 |
How comfortable are you presenting your insights? | Data Analytics | Citigroup | null | no | no | 1 |
How do you handle cleaning and organizing a large dataset? | Data Analytics | Citigroup | null | no | no | 0 |
How do you identify multicollinearity in a dataset? | Data Analytics | Citigroup | null | no | no | 0 |
How do you prioritize multiple deadlines? | Data Analytics | Citigroup | null | no | no | 1 |
How do you visually inspect data for outliers? | Data Analytics | Citigroup | null | no | no | 0 |
How R square is different from Adjusted R square? | Data Analytics | Citigroup | null | no | no | 0 |
How to check multicollinearity in Logistic regression. | Data Analytics | Citigroup | null | no | no | 0 |
How to check outliers in a variable? | Data Analytics | Citigroup | null | no | no | 0 |
How to join tables in SQL | Data Analytics | Citigroup | null | no | no | 0 |
How would you analyze focus group data to decide which TV series to feature? | Data Analytics | Citigroup | null | no | no | 1 |
How would you design a function to detect anomalies in a univariate dataset? | Data Analytics | Citigroup | null | no | no | 0 |
How would you explain a p-value to a non-technical person? | Data Analytics | Citigroup | null | no | no | 0 |
How would you identify the top 1,000 small businesses to reach out from a list of 100,000 businesses? | Data Analytics | Citigroup | null | no | no | 0 |
Identifying Specific Customer Patterns Citigroup is interested in identifying all the customers whose names have a specific character pattern. Given the customer records, write a SQL query to find all the customers whose names begin with 'Rob'. | SQL | Citigroup | null | no | no | 0 |
If you want to return records with no duplicates, you can use the keyword in your statement. | SQL | Citigroup | null | no | no | 0 |
Second Highest Salary. Given a table of Citigroup employee salaries, write a SQL query to find the 2nd highest salary amongst all the employees. | SQL | Citigroup | null | no | no | 0 |
Select the top 3 departments with at least ten employees and rank them by the percentage of employees making over 100K. | Data Analytics | Citigroup | null | no | no | 0 |
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