Delphi Technical Center India Data Analyst Interview Questions and Answers

Q1. Explain 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. What is ur experience on Data analyst
Ans. 
I have 3 years of experience as a Data Analyst in the retail industry.
• Utilized SQL to extract and analyze data from databases

• Created visualizations using Tableau to present insights to stakeholders

• Performed statistical analysis to identify trends and patterns in sales data
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Q1. Roc and auc related questions..core statistics and case studies
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Assessment for coding round

Q1. Behavioral questions and compensation negotiation
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Q1. About college Project
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Q2. Sql basic questions
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About Data in SQL , syntax

Q1. Machine learning,sql
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Q1. Tell 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
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Q2. What are the steps you do for Data cleaning
Ans. 
Data cleaning involves removing or correcting errors in a dataset to ensure accuracy and consistency.
• Remove duplicate entries

• Fill in missing values

• Correct formatting errors

• Identify and remove outliers

• Standardize data types
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Questions asked on Alteryx functions

Q1. Explain the previous projects where i used Alteryx
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Q2. How multi formula used in Alteryx ?
Ans. 
Multi formula tool in Alteryx allows users to apply multiple formulas to different fields in a single step.
• The Multi formula tool in Alteryx is used to apply multiple formulas to different fields in a single step.

• Users can add multiple formula expressions and assign them to specific fields in the data set.

• This tool is helpful for performing complex calculations on multiple fields simultaneously.

• Example: Using the Multi...read more
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Q3. Explain how can we build Alteryx application ?
Ans. 
Alteryx applications can be built using the Alteryx Designer tool by creating workflows and configuring user inputs.
• Use Alteryx Designer tool to create workflows for data processing

• Configure user inputs such as text boxes, drop-down menus, and buttons

• Utilize Alteryx Gallery to publish and share the application with others
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Q1. Explain the experience in data
Ans. 
I have over 5 years of experience in data analysis, including working with large datasets, creating visualizations, and providing actionable insights.
• Experience in cleaning and transforming data to ensure accuracy and consistency

• Proficient in using statistical tools and techniques to analyze data

• Ability to create data visualizations and dashboards to communicate findings

• Experience in identifying trends and patterns in ...read more
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Q2. Explain the courses done in data analyst
Ans. 
Courses in data analyst cover topics such as statistics, data visualization, machine learning, and data mining.
• Statistics: Understanding of statistical concepts and techniques for data analysis.

• Data Visualization: Creating visual representations of data to aid in analysis and decision-making.

• Machine Learning: Using algorithms and models to analyze and make predictions based on data.

• Data Mining: Extracting patterns and ...read more
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