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 |
|---|---|---|---|---|---|---|
Design a tic tac toe ai program | Data Engineer | PayPal | null | no | no | 0 |
design system to book minimal parking slot at entry/exit (based on time/distance) Later need to write endpoints required | Data Engineer | PayPal | null | no | no | 0 |
Develop a function str_map to determine if a one-to-one correspondence exists between characters of two strings at the same positions | All | PayPal | null | no | no | 0 |
Did you consider overfit/ variable selection in this project? | Data Science | PayPal | null | no | no | 0 |
diff between other boosting algorithms | Data Science | PayPal | null | no | no | 0 |
Difference between hashmap and hashtable | Data Engineer | PayPal | null | no | no | 0 |
Do you have any experience as a Data Analytics? | Data Analytics | PayPal | null | no | yes | 1 |
Do you have experience with linear regression, machine learning, and Machine Learning? | Machine Learning | PayPal | null | no | yes | 0 |
Does using a credit models calibrated score with a fixed cutoff to determine credit-worthiness lead to an over or underestimation of the populations credit scores? | All | PayPal | null | no | no | 0 |
Explain about your current project | Data Science | PayPal | null | no | no | 0 |
explain Adaboost algorithm | Data Science | PayPal | null | no | no | 0 |
explain CNN and weight sharing between kernels | Data Science | PayPal | null | no | no | 0 |
Explain how an XGBoost model differs from a random forest model. | Data Science | PayPal | null | no | no | 0 |
Explain How We Can Capture The Correlation Between Continuous And Categorical Variable? | Machine Learning | PayPal | null | no | no | 0 |
Explain how you would approach solving a problem involving a vending machine and giving change for coins? | Machine Learning | PayPal | null | no | no | 0 |
Explain how you would calculate word frequency (TF-IDF) in a Machine Learning use case. | Machine Learning | PayPal | null | no | no | 0 |
Explain linear regression and its intuition | Data Science | PayPal | null | no | no | 0 |
Explain Model development full pipeline | Machine Learning | PayPal | null | no | no | 0 |
Explain the Naive Bayes algorithm | Data Science | PayPal | null | no | no | 0 |
Explain the Naive Bayes algorithm. | Data Science | PayPal | null | no | no | 0 |
find median of two sorted arrays | Data Science | PayPal | null | no | no | 0 |
gave a table with address and asked me to do normalization using SQL | Data Engineer | PayPal | null | no | no | 0 |
Give us an example of the application of TensorFlow in a production system. | Data Science | PayPal | null | no | no | 0 |
Given a dataset of 600,000 credit card transactions, how would you create a fraud detection model for a major credit card company? | Data Science | PayPal | null | no | no | 0 |
Given a list of tuples featuring names and grades on a test, write a function to normalize the values of the grades to a linear scale between 0 and 1. | Data Science | PayPal | null | yes | no | 0 |
Given that X and Y are independent random variables with normal distributions, determine the mean and variance of the distribution of 2X - Y when the corresponding distributions are X ~ N(3, 4) and Y ~ N(1, 4). | All | PayPal | null | no | no | 0 |
Given the unbalanced size between the two groups, can you determine if the test will result in a bias towards the smaller group? | All | PayPal | null | no | no | 0 |
Given two sorted lists, write a function to merge them into one sorted list. | Data Science | PayPal | null | yes | no | 0 |
Have you completed any LeetCode coding challenges? | Machine Learning | PayPal | null | no | no | 0 |
Have you implemented logistic regression in coding? | Machine Learning | PayPal | null | no | no | 0 |
Have you worked in any projects related to data analysis if so briefly explain about you have done? | Data Analytics | PayPal | null | no | no | 0 |
How can you add employee details to the list of IDs by joining the list with the whole dataset? | Data Science | PayPal | null | no | no | 0 |
How can you output only the first names from the list of IDs? | Data Science | PayPal | null | no | no | 0 |
How can you use a HAVING clause to output IDs that appear in the 'manager_id' column at least 7 times? | Data Science | PayPal | null | no | no | 0 |
How did you handle missing or dirty data in this project? | Data Science | PayPal | null | no | no | 0 |
How do you build estimators for medians? | Data Science | PayPal | null | no | no | 0 |
How do you find feature importance in a neural network? | Data Science | PayPal | null | no | no | 0 |
How do you handle challenges, conflicts, and priorities? | Data Analytics | PayPal | null | no | no | 1 |
How do you handle challenging situations in the workplace? | Data Analytics | PayPal | null | no | no | 1 |
How do you prioritize tasks at work? | Data Analytics | PayPal | null | no | no | 1 |
How do you remove a linked list node when only given a pointer to that specific node? | Data Engineer | PayPal | null | no | no | 0 |
How do you see yourself in 5 years | Data Science | PayPal | null | no | no | 0 |
how does a xgbt work | Data Science | PayPal | null | no | no | 0 |
How does random forest generate the forest and why use it over logistic regression? | Machine Learning | PayPal | null | no | no | 0 |
How does the 3-step framework help in solving a problem? | Data Science | PayPal | null | no | no | 0 |
How is KNN different from k-means? | Machine Learning | PayPal | null | no | no | 0 |
How many years will it take a $10,000 investment to yield $2,100 at an annual compound interest rate of 10%? | Data Analytics | PayPal | null | no | no | 0 |
How to analyze customer spending data and identify viable business opportunities for potential partnerships? | Data Analytics | PayPal | null | no | no | 0 |
How to do feature engineering? | Data Science | PayPal | null | no | no | 0 |
How to explain the Naive Bayes algorithm? | Data Science | PayPal | null | no | no | 0 |
How to handle or missing data in a dataset? | Machine Learning | PayPal | null | no | no | 0 |
How To Handle Or Missing Data In A Dataset? | Machine Learning | PayPal | null | no | no | 0 |
how to know it's a fraud or not? how to find patterns? | Data Science | PayPal | null | no | no | 0 |
How to write a query to forecast the budget for all projects and label them over budget and within budget accordingly? | Data Analytics | PayPal | null | yes | no | 0 |
How well did your models perform and what metrics did you use to evaluate them? | Data Science | PayPal | null | no | no | 0 |
How would you add a column inserting data from the original source without affecting the user experience? | All | PayPal | null | no | yes | 0 |
How would you build a fraud detection model with a text messaging service for a bank? | Machine Learning | PayPal | null | no | no | 0 |
How would you build a fraud detection model? | All | PayPal | null | no | no | 0 |
How would you build a model to detect fraud for a bank that also implements a text messaging service to notify customers of potentially fraudulent transactions? | All | PayPal | null | no | no | 0 |
How would you build an ETL pipeline to get Stripe payment data into the database so analysts can build revenue dashboards and run analytics? | Data Engineer | PayPal | null | no | no | 0 |
How would you check if a transaction is fraudulent? | Data Analytics | PayPal | null | no | no | 0 |
How would you combat overfitting when building tree-based classification models? | Machine Learning | PayPal | null | no | no | 0 |
How would you create a schema to represent client click data on the web? | All | PayPal | null | no | no | 0 |
How would you deal with disagreeing colleagues? | All | PayPal | null | no | no | 0 |
How would you detect customer location using credit card activity to flag potential fraud | All | PayPal | null | no | no | 0 |
How would you ensure the data quality across etl platforms? | Data Engineer | PayPal | null | no | no | 0 |
How would you ensure the data quality across ETL platforms? | Data Engineer | PayPal | null | no | no | 0 |
How would you explain linear regression to a non-technical person? | Data Science | PayPal | null | no | no | 0 |
How would you explain the bias-variance tradeoff in building and choosing a machine learning model? | Machine Learning | PayPal | null | no | no | 0 |
How would you explain what a p-value is to someone who is not technical? | Machine Learning | PayPal | null | no | no | 0 |
How would you find feature importance in a neural network? | Data Science | PayPal | null | no | no | 0 |
How would you identify the strongest/most important predictors of a trained NN? | Data Science | PayPal | null | no | no | 0 |
How would you join a personal table with a transaction table and calculate the total cost for a type of user? | Data Analytics | PayPal | null | no | no | 0 |
How would you normalize a table using SQL? | Data Engineer | PayPal | null | no | no | 0 |
If a coin was tossed 10 times and showed heads each time, what is the probability of getting heads on the 11th toss? Is the coin biased? | Data Analytics | PayPal | null | no | no | 0 |
If each of the two coefficient estimates in a regression model is statistically significant, do you expect the test of both together is still significant? | Data Science | PayPal | null | no | no | 0 |
If each of the two coefficient estimates in a regression model is statistically significant, do you expect the test of both together to be significant? | Data Science | PayPal | null | no | no | 0 |
If I draw two cards from a standard deck, what is the probability both are not aces? | Data Analytics | PayPal | null | no | no | 0 |
If two characters are tied for the most continuous repetition, return the character whose longest continuous repetition occurs earliest in the string | Machine Learning | PayPal | null | no | no | 0 |
If two predictors are highly correlated, what is the effect on the coefficients in the logistic regression? | Data Science | PayPal | null | no | no | 0 |
If you have a table with a billion rows, how would you add a column with data from the original source without negatively impacting the user experience? | All | PayPal | null | no | yes | 0 |
If you know for certain that a friend of yours has 2 children and that atleast one of them is a boy, what is the probability that the other is also a boy? | Data Science | PayPal | null | no | no | 0 |
If you merge 2 datasets in SAS without BY statement, how would the resultant output be? | Data Science | PayPal | null | no | no | 0 |
Imagine you draw two cards from a shuffled deck, one after the other. What is the probability that the second card is not an Ace? | All | PayPal | null | no | no | 0 |
Implement a two-pointer technique to iterate through both lists simultaneously, comparing elements and adding the smaller one to a new list until youve gone through both lists. | Data Science | PayPal | null | no | no | 0 |
Let us say you have a database with two tables. The first table contains user information, including their registration date, and the second table contains purchases, which have the purchase history (if any) for all users. Write a query to get the total amount spent on each item in the purchases table by users who regi... | Data Science | PayPal | null | yes | no | 0 |
Mathematically speaking, how would changing number of features per tree affect the performance of a random forest? | Data Science | PayPal | null | no | no | 0 |
Mean and Gaussian mixture model: what is the difference between K-means and EM? | Data Science | PayPal | null | no | no | 0 |
Mention Any One Of The Data Visualization Tools That You Are Familiar With? | Machine Learning | PayPal | null | no | no | 0 |
Please state few popular Machine Learning algorithms? | Machine Learning | PayPal | null | no | no | 0 |
Print out the duplicates from given numerical array, followed by number of times each number repeated | Data Engineer | PayPal | null | no | no | 0 |
Remove linked list node provided only pointer to that specific node | Data Engineer | PayPal | null | no | no | 0 |
Reverse a linkedlist | Data Engineer | PayPal | null | no | no | 0 |
Share an instance when your colleagues disagreed with your approach. How did you involve them in the conversation and address their concerns? | All | PayPal | null | no | no | 1 |
Simulate a bivariate normal | Data Science | PayPal | null | no | no | 0 |
State your strength and back it with a story to give it context. | Data Analytics | PayPal | null | no | no | 1 |
Suppose you want to identify fake reviews for your products. From past data, you know that 98% of reviews are legitimate, and 2% are fake. If a review is fake, theres a 95% chance that the machine learning algorithm labels it as fake. If a review is legitimate, theres a 90% chance that the algorithm labels it as legiti... | All | PayPal | null | no | no | 0 |
Talk about an analytics project you have done in the past. | Data Analytics | PayPal | null | no | no | 0 |
Tell me about a conflict youve had with a co-worker. | Data Science | PayPal | null | no | no | 1 |
Tell me about some of your projects. | Data Science | PayPal | null | no | no | 0 |
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