Takehomes
Inventory Time Series
Determine the percentage of customers that won't wait for an item to get restocked.
Answer multiple questions to show your data science skills
Delivery Time Estimator
Create a model to predict how long it will take a driver to deliver an order
Create a model to recommend bookings to Brazilian Airbnb users
Help a cross-functional Airbnb team grow bookings in Rio de Janeiro
Stripe Product Analysis
Determine how well a product at Stripe is performing.
Free-form Exploratory Data Analysis
Preform Open-ended analysis of a data set and make a notebook showing any interesting threads you find
Bike-Sharing Program Q&A
Answer questions regarding data from a bike-sharing program.
Merchant Application Analysis
Conduct analysis to discover how to promote Affirm to merchants
Sale Forecasting
Create a model to forecast revenue from sales in the future
Movie Revenue Prediction
Create forecast the revenue of new movies
Spam Article Classifier
Create a model to predict if an article is spam or not
Product Line Analysis
Estimate the financial impact of launching a new product line on monthly sales.
Draftkings Data Science Challenge
Answer multiple questions to show your data science skills
KPI Dashboard Design
Design and write queries for a KPI dashboard
Overspending Analysis
Determine if a newly launched product effectively reduces overspending (and answer some probability questions).
Promotion Predictor
Create a model to determine if a promotion should be given to a user
Create a model to classify if a piece of text was made a human or a bot.
Best State for Growth
Find what state Grubhub should focus on for new product development
4 Short DS exercises
Complete four short data science questions covering the full breath of the job
Create a model to predict the frequency of high winds that can help estimate how long it takes trucks to flip over in high winds
Supermarket Sales SQL Takehome Challenge
Determine the most efficient use of space inside a supermarket.
Food Shelf Value Predictor
Create a model to price daily estimate the shelf value of different food items
Loan Default Classification Model
Create a model to predict whether or not a debtor will default on a loan
Design a system to show the correlation between the price of a cryptocurrency and Twitter sentiment about the token.
Product Recommendation Builder
How would you build a product recommendation system?
Revenue Data Analysis
Explore, analyze, visualize, and model Supercell's revenue data
Transforming CSV file
Write a script to transform the provided CSV to a desired output CSV.
Complete two long-form challenges, to test your SQL and story telling skills
Real-time Crime Categorizer
Build a model that predicts the type of crime as soon as an emergency call comes in.
Evaluate e-commerce Startup
Analyze the business prospects for a new e-commerce startup and see if they are worth investing in
Gordon Ramsay Masterclass EDAt
Do exploratory data analysis on user behavior on Gordon Ramsay Masterclass page
Pitch Forecast
Build a model that will predict the probability of a fastball, slider, etc., in a real-time environment.
Create a model that predicts the overall title risk of a property.
Credit Card Fraud Detection
Create a model to detect if a transaction on a credit card was fraudulent or not
Legacy Code Audit
Given some legacy Python 2 code, identify bugs and errors in the code, reformat the code to Python 3, and suggest other ways to improve the code.
Build a transparent Redis proxy service
Mortality Rate during Sha'ban
Conduct analysis to see whether or not more people die during the month of Sha'ban.
Loan Default Model
Create a model to predict the probability of a debtor defaulting on a loan
Give a presentation to help the product and engineering team understand user behavior.
Building Permit Classifier
Create a model predict if a permit is about electrical permissions
Traffic Congestion Analysis
Create a presentation with suggestions on how to reduce traffic congestion
Create a function to parse messy json files
Click-Through Prediction
Create a model to predict if a user will click on a link
NPS Aggregation
Write two queries using different approaches to aggregate NPS by client by month.
Identify which features are most important for getting a user to adopt our product
Healthcare Cyber Attack Analysis
Perform analysis and modeling to access the risk of cyber attacks on healthcare facilities
Messy Product Data Analysis
Perform analysis on a data set of product details that is formatted in an inconvenient manner. Provide suggestions to improve the data model.
Electricity Pricing Model
Create a model to price daily electricity costs for households
Discharge Rate vs. Workload
Determine if the amount of "busy days" at a hospital affects the discharge rate of a patient.
Pricing Options for Courses
Analyze which pricing method is best for e-learning course
Vertical Acceleration Predictor
Create a model to estimate the acceleration of a car
Evaluate conversion rate predictions by device for a set of entities.
Rental Price Analysis
Conduct analysis the prices of short-term rentals in Phoenix, Arizona
Answer multiple questions to show your data science skills
2 Short DS exercises
Complete two short data science questions covering the EDA and Error Analysis
Client Distribution Recommendation
Give a recommendation on how City Year should focus on different types of clients based on survey data.
EDA on Unusual Data
Answer questions about two data sets that have an usual way of labeling data
Budget Allocation
How would you allocate the budget you were given to acquire new users?
Hourly Order Requests
Build a model to predict the number of order requests per hour for five regions.
Business Loan Repayment
Create a model to predict if a book-delivery startup will be able to pay back a loan
Predicting Consecutive Players
Create a model that predicts if a child will likely play Square Panda games in the next seven days.