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You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

Housing.Com Salaries by Position

Who we are…? REA India is a part of REA Group Ltd. of Australia (ASX: REA) (“REA Group”). It is the country’s leading full stack real estate technology platform that owns Housing.com, Makaan.com and PropTiger.com. In December 2020, REA Group acquired a controlling stake in REA India. REA Group, headquartered in Melbourne, Australia, is a multinational digital advertising business specialising in property. It operates Australia’s leading residential and commercial property websites, realestate.com.au and realcommercial.com.au and owns leading portals in Hong Kong (squarefoot.com.hk) and China (myfun.com). REA Group also holds a significant minority shareholding in Move, Inc., operator of realtor.com in the US, and the PropertyGuru Group, operator of leading property sites in Malaysia, Singapore, Thailand, Vietnam and Indonesia. REA India is the only player in India that offers a full range of services in the real estate space, assisting consumers through their entire home seeking journey all the way from initial search and discovery to financing to the final step of transaction closure. It offers advertising and listings products to real estate developers, agents & homeowners, exclusive sales and marketing solutions to builders, data and content services, and personalized search, virtual viewing, site visits, negotiations, home loans and post- sales services to consumers for both buying and renting. With a 1600+ strong team, REA India has a national presence with 24 offices across India with its corporate office located in Gurugram, Haryana. Housing.com Founded in 2012 and acquired by REA India in 2017, Housing.com is India’s most innovative real estate advertising platform for homeowners, landlords, developers, and real estate brokers. The company offers listings for new homes, resale homes, rentals, plots and co-living spaces in India. Backed by strong research and analytics, the company’s experts provide comprehensive real estate services that cover advertising and marketing, sales solutions for real estate developers, personalized search, virtual viewing, AR&VR content, home loans end-to-end transaction services, and post-transaction services to consumers for both buying and renting. PropTiger.com PropTiger.com is among India’s leading digital real estate advisory firm offering a one-stop platform for buying residential real estate. Founded in 2011 with the goal to help people buy their dream homes, PropTiger.com leverages the power of information and the organization's deep-rooted understanding of the real estate sector to bring simplicity, transparency and trust in the home buying process. PropTiger.com helps home-buyers through the entire home- buying process through a mix of technology-enabled tools as well as on-ground support. The company offers researched information about various localities and properties and provides guidance on matters pertaining to legal paperwork and loan assistance to successfully fulfil a transaction. Our Vision Changing the way India experiences property. Our Mission To be the first choice of our consumers and partners in discovering, renting, buying, selling, financing a home, and digitally enabling them throughout their journey. We do that with data, design, technology, and above all, the passion of our people while delivering value to our shareholder Our Culture Culture forms the core of our foundation and our effort towards creating an engaging workplace that has resulted in REA India being ranked 3rd among the coveted list of India’s Best 100 Companies to Work For in 2023 by the Great Place to Work Institute®. REA India was also ranked in the top 25 workplaces in 2022 & 2021 and in top 50 in 2019. In addition, REA India was also recognized as Best Workplace™ in Building a Culture of Innovation by All in 2023 and India’s Best Workplaces™ in Retail (e-commerce category) for the third time in 2023. REA India is ranked 4th among Best Workplaces in Asia in 2023 and was ranked 55th in 2022, & 48th in 2021 apart from being recognized as Top 50 Best Workplaces™ for Women in India in 2023 and 2021. REA India is also recognized as one of India&#39;s Top 50 Best Workplaces for Millennials in 2023 by Great Place to Work®. At REA India, we believe in creating a home for our people, where they feel a sense of belonging and purpose. By fostering a culture of inclusion and continuous learning and growth, every team member has the opportunity to thrive, embrace the spirit of being part of a global family, while contributing to revolutionize the way India experiences property. When you come to REA India, you truly COME HOME! REA India (Housing.com, PropTiger.com, Makaan.com) is an equal opportunity employer and welcomes all qualified individuals to apply for employment. We are committed to creating an environment that is free from discrimination, harassment, and any other form of unlawful behavior. We value diversity and inclusion and do not discriminate against our people or applicants for employment based on age, color, gender, marital status, caste, religion, race, ethnic group, nationality, religious or political conviction, sexual orientation, gender identity, pregnancy, family responsibility, or disability or any other legally protected status. We firmly strive to eliminate any barriers that may impede equal opportunities while also recognizing that specific job roles may require appointees to possess the necessary qualifications, skills, abilities to perform essential functions of the position effectively. What does this role hold for you…?? ● Doing research and bringing innovations to develop next generation solutions in core functional areas related to NLP, Speech Assessment (including Indian languages), Image Processing, Price Estimator, Digital Marketing, Customer Relationship Management (CRM), Campaign Management & Data Insights etc.● Provide technical thought, coaching and mentorship in the field of data science in working with engineering and other cross functional teams.● Evolve the approach for the application of machine learning/deep learning to existing program and project disciplines.● Help establish standards in machine learning and statistical evaluation to ensure consistency in quality across projects and teams and identify relevant process efficiency. Apply if you have... ● A graduation/post-graduation degree in computer science/Mathematics/Statistics (IITs, NITs and other Tier-I colleges preferred).● Experience with one or more of ML frameworks such as scikit-learn, NLTK, NumPy, Pandas, Keras, TensorFlow, Theano and other Cognitive Tools.● 1-3 years of strong hands-on experience in one or more of Artificial Intelligence (AI), Machine Learning (ML), NLP, Deep Learning, Image Processing, Computer Vision and Neural Networks.● Worked on one or more of Deep Learning Architectures such as CNN, RNN, LSTM or any of their variants.● Experience in Decision Trees, Random Forests, Gradient Boosting, XGBoost. (desirable)● Coding skills in Python. (mandatory)● Fluency with various techniques in ML such as regression, classification, and cluster analysis.● Experience with large data sets and distributed computing (Hive/Hadoop/Spark). (desirable) Know more about us… Visit our career websites at https://careers.housing.com/ & https://careers.proptiger.com/ and LinkedIn page to know more about our company culture, and gain insights into what makes us a Great Place to Work. Want to dive into what we do? Visit our main websites for an in-depth look at www.housing.com, www.proptiger.com & www.makaan.com

Housing.Com Interview Questions

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Housing.Com Interview Questions

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