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ByteDance Data Analyst Intern Interview Questions and Answers
ByteDance Data Analyst Intern Interview Experiences
1 interview found
Anonymous
(1 Question)
- Q1. How do you evaluate logistic regression model?
- Ans.
Logistic regression model evaluation involves assessing its performance using metrics like accuracy, precision, recall, and F1 score.
Evaluate model performance using metrics like accuracy, precision, recall, and F1 score.
Use confusion matrix to calculate true positives, true negatives, false positives, and false negatives.
Calculate accuracy as (TP + TN) / (TP + TN + FP + FN).
Calculate precision as TP / (TP + FP).
Calcul...
Using SQL to write a window function (Ranking).
Skills evaluated in this interview
Interview questions from similar companies
Selected
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
(1 Question)
- Q1. Basic questions related to Python and SQL
(1 Question)
- Q1. Advance SQL questions and 1 case study
(1 Question)
- Q1. Basic ML questions and Business acumen questions
Interview Questionnaire
2 Questions
- Q1. Excel, sql were asked basic knowledge, quant screening
- Q2. Work experience was asked, basic intro
Interview Preparation Tips
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.
(1 Question)
- Q1. Questions about sql
Interview Preparation Tips
- SQL
- Excel
Selected
I applied via Referral and was interviewed before Nov 2023. There was 1 interview round.
(2 Questions)
- Q1. Map implementation
- Q2. Oops questions, exception handling
Basic Apititude Questions
(2 Questions)
- Q1. Difference between WHERE and HAVING??
- Ans.
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
- Q2. Where- Row Level Filters Having-Aggregate Filters
- Ans.
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...
(2 Questions)
- Q1. Why do you wanna join Uber?
- Q2. Best Company Ever
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed before Jun 2023. There were 3 interview rounds.
It was basic MCQ related to Javascript
(1 Question)
- Q1. Asked basic questions related to array and SQL
(1 Question)
- Q1. Asked question to test the business context
I applied via Job Portal and was interviewed before Jun 2022. There were 2 interview rounds.
(1 Question)
- Q1. Previous company experience and current company roles and responsibilities
Selected
I applied via Company Website and was interviewed before Feb 2023. There were 2 interview rounds.
Simple SQL & Excel test
(1 Question)
- Q1. Will Face hiring Manager
I applied via Company Website and was interviewed in Mar 2024. There was 1 interview round.
1 hour test maths reasoning and english
Interview Preparation Tips
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based on 1 interview
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