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ZootOut Data Analyst Interview Questions and Answers
ZootOut Data Analyst Interview Experiences
1 interview found
P Dh
It was a coding test along with assignment
(2 Questions)
- Q1. It was around sql python and stats
- Q2. Types of ML what is hypothesis testing
- Ans.
Hypothesis testing is a statistical method used to make inferences about a population based on sample data.
Hypothesis testing involves formulating a null hypothesis and an alternative hypothesis.
It helps determine if there is enough evidence to reject the null hypothesis in favor of the alternative hypothesis.
Common types of hypothesis tests include t-tests, chi-square tests, and ANOVA.
It is used to assess the signific...
Skills evaluated in this interview
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Gautham Reddy
(2 Questions)
- Q1. Interviewer asked me basic SQL questions
- Q2. In the second technical round he asked me advanced SQL topics (Windows Functions, Joins & Subqueries)
In the second technical round interview asked me about advanced sql topics, theory questions and two coding questions in joins and window functions.
Anonymous
I applied via LinkedIn and was interviewed in May 2024. There was 1 interview round.
(3 Questions)
- Q1. Peevious Experience related questions
- Q2. Dashboard related questions
- Q3. Sql related questions
Interview Preparation Tips
I was informed by the HR team that my interview would be conducted in person, with all rounds taking place on the same day, and that I would receive the results the same day. As a result, I traveled a considerable distance to attend.for the interview the told me to wait for the 3 hrs.
- During the interview, it was disheartening to find that the interviewer seemed uninterested in my responses. I was asked to write queries on paper, and while I was explaining them, the interviewer was preoccupied with reading emails and all other work. Despite providing correct answers, the experience felt dismissive.
After the interview, I was asked to wait for feedback. After waiting for two hours, the HR team informed me that my review was still in process and that they would follow up. After three days and multiple follow-ups, I was eventually told that I did not clear the round.
While I am okay with the outcome, I have a few requests for companies conducting interviews:
1.Respect Candidates' Efforts and Time: Please be considerate of the efforts and time candidates invest, especially those who travel long distances.
2. Clear Communication: If face-to-face interviews are required, particularly for final rounds, please communicate this clearly to avoid unnecessary travel and inconvenience.
I hope these points help improve the interview process for future candidates.
I applied via Naukri.com
(2 Questions)
- Q1. Excel questions are index match, sumif, countif, vlookup
- Q2. Sql questions are 2nd highest salary
I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.
(1 Question)
- Q1. Basic details about work ex, reason to switch, salary expectations
2 SQL questions asked
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. About previous experience situation based questions excel problem solving
- Q2. Tell me about yourself difference between data quality and data validity
Interview Preparation Tips
Selected
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. SQL base Question
- Q2. About your projects
I applied via Instahyre and was interviewed in May 2024. There were 2 interview rounds.
Asked to write different SQL queries.
1. Moving average of lf previous 10 days
2. For a data which records in and out time of an employee. How many employees were present in the office at a given time
3. A/B testing vs pre-post testing
1. Had to come up with a method to give a score to each user based on FRM(frequency, recency, monetory)
2. Guesstimate: how many burgers does McD sells in a day
Selected
I applied via Company Website and was interviewed in Jul 2023. There were 4 interview rounds.
Number sires, clock, logic, arithmetic, geometry
Code test basic, ans the basic knowledge, write code
(5 Questions)
- Q1. What is python?
- Ans.
Python is a high-level programming language known for its simplicity and readability.
Python is widely used for web development, data analysis, artificial intelligence, and scientific computing.
It emphasizes code readability and uses indentation to define code blocks.
Python has a large standard library and a vibrant community of developers.
Example: print('Hello, World!')
Example: import pandas as pd
- Q2. What is python used for?
- Ans.
Python is a versatile programming language used for data analysis, web development, artificial intelligence, automation, and more.
Data analysis and visualization
Web development (Django, Flask)
Artificial intelligence and machine learning (TensorFlow, PyTorch)
Automation and scripting
Scientific computing (NumPy, SciPy)
- Q3. What type of language is python?
- Ans.
Python is a high-level programming language known for its simplicity and readability.
Python is an interpreted language, meaning it does not need to be compiled before running.
It supports multiple programming paradigms, including object-oriented, imperative, and functional programming.
Python has a large standard library and a thriving community, making it versatile and widely used.
Example: Python is used for web develop...
- Q4. What is oops in python?
- Ans.
Object-oriented programming (OOP) is a programming paradigm based on the concept of 'objects', which can contain data and code.
OOP allows for the organization of code into reusable components called classes.
Classes can have attributes (variables) and methods (functions) associated with them.
In Python, everything is an object, and classes can be defined using the 'class' keyword.
Encapsulation, inheritance, and polymorph
- Q5. What is array in python?
- Ans.
An array in Python is a data structure that stores a collection of elements of the same type.
Arrays can store elements such as integers, floats, or strings.
Arrays are indexed starting from 0, with elements accessed using their index.
Example: arr = ['apple', 'banana', 'cherry']
Interview Preparation Tips
- Advanced Excel
- SQL Server
- Python
Skills evaluated in this interview
Snigdha Dhupal
I applied via Job Portal
SQL and Python data analysis questions
(1 Question)
- Q1. How do you match the data in different columns.
- Ans.
Matching data in different columns involves comparing the values in the columns and identifying similarities or patterns.
Use string matching techniques like exact match, partial match, or fuzzy matching.
Apply data cleaning and preprocessing techniques to standardize the data before matching.
Utilize advanced algorithms like Levenshtein distance or Jaccard similarity for more complex matching.
Consider using database join...
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