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AI Variant Data Science Interview Questions and Answers
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1 interview found
Anonymous
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
(2 Questions)
- Q1. Stats ML Supervised Unsupervised
- Q2. What is central limit theorem
- Ans.
Central Limit Theorem states that the sampling distribution of the sample mean approaches a normal distribution as the sample size increases.
The theorem states that regardless of the shape of the population distribution, the sampling distribution of the sample mean will be approximately normally distributed.
It is a fundamental concept in statistics and is used in hypothesis testing and confidence intervals.
For example,...
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Vijaya Lakshmi Somu
I applied via Referral and was interviewed before Jun 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Different type of metrics for regression
- Ans.
Different metrics for evaluating regression models
Mean Squared Error (MSE)
Root Mean Squared Error (RMSE)
Mean Absolute Error (MAE)
R-squared (Coefficient of Determination)
- Q2. Explai how neural network works
- Ans.
Neural networks are a type of machine learning algorithm inspired by the human brain, consisting of interconnected nodes that process information.
Neural networks consist of layers of interconnected nodes, with each node performing a simple mathematical operation.
Information is passed through the network via weighted connections between nodes, with the weights adjusted during training to optimize performance.
Neural netw...
(1 Question)
- Q1. Given some python coding
Skills evaluated in this interview
I applied via LinkedIn and was interviewed before Sep 2023. There were 2 interview rounds.
3 hour oa - binary search , graph , dp
(2 Questions)
- Q1. What is object orinted programing ?
- Ans.
Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object-oriented programming.
Examples include Java, C++, and Python, which are popular object-oriented programming languages.
- Q2. Write sql query for the bank transaction ?
- Ans.
SQL query to retrieve bank transactions data.
Use SELECT statement to retrieve data from transaction table.
Filter data based on account number or transaction date.
Group data by transaction type or amount for analysis.
Skills evaluated in this interview
Sibankar
I was interviewed before May 2023.
(1 Question)
- Q1. Basic sql and data science related
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