ZIGRAM Data Science Intern Interview Questions and Answers

Q1. About work experience
Ans. 
I have over 5 years of experience in data analysis, focusing on data visualization, statistical analysis, and business intelligence.
• Worked at XYZ Corp, where I analyzed sales data to identify trends, resulting in a 15% increase in quarterly revenue.

• Developed interactive dashboards using Tableau to present key performance indicators to stakeholders, enhancing decision-making processes.

• Conducted A/B testing for marketing...read more
Answered by AI
Add your answer
Q2. About education
Ans. 
Education is crucial for a Data Analyst, providing foundational skills in statistics, programming, and data interpretation.
• Bachelor's degree in fields like Statistics, Mathematics, or Computer Science is common.

• Courses in data visualization tools like Tableau or Power BI enhance analytical skills.

• Knowledge of programming languages such as Python or R is essential for data manipulation.

• Understanding of SQL for database ...read more
Answered by AI
Add your answer

Q1. Machine Learning-related stuff: Confusion Matrix, R2 score, etc.. Also, Python & Statistics.
Add your answer
Q2. Explain any one project.
Add your answer
Q3. Difference between Data Analyst and Data Scientist.
Add your answer

It was deciphering spoken language to subtitle for a complicated accented show

Q1. Why do you want to work here?
Add your answer
Q2. What are you passionate about that made you apply for this job?
Add your answer

Object Detection on a subset of COCO dataset having Cars and Person classes

Q1. Technical discussion on Machine Learning, Deep Learning Concepts and coding round.
Add your answer

Q1. Technical discussion on Deep Learning and Computer Vision.
Add your answer

Q1. Write a query to extract unique values?
Ans. 
Query to extract unique values
• Use the SELECT DISTINCT statement in SQL to retrieve unique values from a table

• For example, SELECT DISTINCT column_name FROM table_name;

• In Python, you can use the set() function to extract unique values from a list or array
Answered by AI
Add your answer

Q1. Previous role and projects
Ans. 
In my previous role as an Analyst, I focused on data analysis, project management, and stakeholder communication to drive business insights.
• Conducted data analysis for a marketing campaign, resulting in a 20% increase in customer engagement.

• Managed a cross-functional team for a product launch, ensuring timely delivery and alignment with business goals.

• Developed dashboards using Tableau to visualize key performance indi...read more
Answered by AI
Add your answer

Python coding and sql coding

Q1. List all the string which start with 'a'
Ans. 
List of strings starting with 'a'
• Use a loop to iterate through each string

• Check if each string starts with 'a'

• Add the string to the list if it starts with 'a'
Answered by AI
Add your answer
Q2. Find out max value from the given table
Add your answer