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I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
Developed a predictive model to forecast customer churn for a telecom company.
Collected and cleaned customer data including usage patterns and demographics.
Used machine learning algorithms such as logistic regression and random forest to build the model.
Evaluated the model's performance using metrics like accuracy, precision, and recall.
Provided actionable insights to the company based on the model's predictions.
Data Analyst focuses on analyzing data to provide insights, while Data Scientist focuses on using advanced algorithms and machine learning to predict future trends.
Data Analyst focuses on analyzing data to provide insights for decision-making.
Data Scientist focuses on using advanced algorithms and machine learning to predict future trends.
Data Analyst typically works with structured data, while Data Scientist works wit...
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I applied via LinkedIn and was interviewed in Sep 2020. There was 1 interview round.
Sharing data insights can help improve services and identify revenue opportunities.
Analyzing customer behavior can help identify areas for improvement
Identifying trends in sales data can help optimize pricing strategies
Using data to personalize marketing efforts can increase customer engagement
Predictive modeling can help identify potential revenue opportunities
Tracking key performance indicators can help optimize busi
It was easy consisting of sql and excel questions
I applied via Campus Placement and was interviewed before Aug 2022. There were 3 interview rounds.
The aptitude questions were bit easy and there were questions about SQL, and also excel sheets.
I applied via LinkedIn and was interviewed before Feb 2023. There were 4 interview rounds.
Approx 30 questions which are to be solved in 1 hour. Questions include logical and mathematical questions along with basic ML and stats questions
I applied via Approached by Company and was interviewed before Jun 2023. There were 3 interview rounds.
It was basic MCQ related to Javascript
Basic Apititude Questions
WHERE is used to filter rows before grouping, HAVING is used to filter groups after grouping.
WHERE is used with SELECT statement to filter rows based on a condition
HAVING is used with GROUP BY statement to filter groups based on a condition
WHERE is applied before data is grouped, HAVING is applied after data is grouped
Example: SELECT * FROM table WHERE column = 'value'
Example: SELECT column, COUNT(*) FROM table GROUP B
Row level filters are applied before aggregations, while aggregate filters are applied after aggregations.
Row level filters are used to filter individual rows of data before any aggregations are performed.
Aggregate filters are used to filter the aggregated results after the data has been grouped and summarized.
Row level filters are typically applied using WHERE clause in SQL, while aggregate filters are applied using H...
I was interviewed in Aug 2024.
Calculate the number of rows after joining two datasets.
Count the number of rows in each dataset
Perform the join operation
Count the number of rows in the resulting dataset
Use Excel's text to columns feature to split person names into separate columns.
Select the column containing the full names
Go to the Data tab and click on Text to Columns
Choose 'Delimited' and select the delimiter that separates the names (e.g. space)
Click Finish to split the names into separate columns
I applied via Referral and was interviewed in Oct 2021. There was 1 interview round.
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