PhonePe Data Analyst Interview Questions and Answers

Sql, python, statistical questions

Q1. How daily work looks like?
Ans. 
Daily work involves analyzing data, creating reports, and communicating findings to stakeholders.
• Reviewing and cleaning data sets

• Creating visualizations and dashboards

• Conducting statistical analysis

• Communicating insights to non-technical stakeholders
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Q2. Most ise tools?
Ans. 
Some of the most commonly used tools for data analysis include Excel, Python, R, Tableau, and SQL.
• Excel is widely used for data manipulation and analysis.

• Python and R are popular programming languages for data analysis and machine learning.

• Tableau is a powerful data visualization tool.

• SQL is essential for querying databases and extracting data.
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4 sql tasks on 3 tables. Joins, subqueries

Q1. Sql questions on windows functions, subquery
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Q2. Guesstimmate on how many cricket bat is solved in a year
Ans. 
It is difficult to accurately estimate the number of cricket bats sold in a year without specific data.
• The number of cricket bats sold in a year can vary based on factors such as seasonality, popularity of cricket, and market trends.

• One approach to estimate could be to consider the total population of cricket-playing countries and the average number of bats owned by players.

• Another approach could be to look at the sale...read more
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It was a basic Aptitude test, Needed to learn Probability, Permutation , Cobination and SQL.
Total Duration 1 Hour.

Topics were, DSA, SQL, PL/SQL, Data Augmentation

Customer churn classification using a classification ML model

Q1. Write a pseudo code for Bubble sort
Ans. 
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
• Start with the first element and compare it with the next element, swapping if necessary

• Repeat this process for each pair of adjacent elements in the array until the entire array is sorted

• Continue this process for each element in the array until no more swaps are ne
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Q2. What is an API
Ans. 
An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other.
• APIs define the methods for requesting and receiving data between software applications

• APIs can be used to access data from external sources, such as social media platforms or weather services

• Examples of APIs include the Twitter API, Google Maps API, and Spotify API
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Q1. Tell me about yourself
Ans. 
I am a data analyst with a strong background in statistics and data visualization.
• Graduated with a degree in Statistics

• Proficient in programming languages like Python and R

• Experience in analyzing large datasets and creating data visualizations

• Strong problem-solving skills and attention to detail
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Q2. Salaray compensation how much
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