IBM Data Analyst Intern Interview Questions and Answers

Aptitude test was the basics asked in every exam

Q1. What is difference between 4stroke and 2 stroke engine?
Ans. 
4-stroke engines have 4 strokes per cycle, while 2-stroke engines have 2 strokes per cycle.
• 4-stroke engines are more fuel-efficient and produce less pollution than 2-stroke engines.

• 2-stroke engines are simpler and lighter than 4-stroke engines.

• 4-stroke engines have separate intake, compression, power, and exhaust strokes, while 2-stroke engines combine intake and compression, and power and exhaust strokes.

• Examples of 4...read more
Answered by AI
Add your answer
Q2. What is a bevel gear? Give an example
Ans. 
A bevel gear is a type of gear used to transmit power between shafts at an angle.
• Bevel gears have conical shapes and are used to change the direction of rotation.

• They are commonly used in automobiles, airplanes, and power plants.

• An example of a bevel gear is the ring and pinion gear in a car's differential.

• Another example is the bevel gear used in a hand drill to transmit power from the motor to the chuck.
Answered by AI
Add your answer

Forecasting problem - Predict daily sku level sales

Q1. What is difference between bias and variance
Ans. 
Bias is error due to overly simplistic assumptions, variance is error due to overly complex models.
• Bias is the error introduced by approximating a real-world problem, leading to underfitting.

• Variance is the error introduced by modeling the noise in the training data, leading to overfitting.

• High bias can cause a model to miss relevant relationships between features and target variable.

• High variance can cause a model to ...read more
Answered by AI
Add your answer
Q2. Parametric vs non parametruc model
Ans. 
Parametric models make strong assumptions about the form of the underlying data distribution, while non-parametric models do not.
• Parametric models have a fixed number of parameters, while non-parametric models have a flexible number of parameters.

• Parametric models are simpler and easier to interpret, while non-parametric models are more flexible and can capture complex patterns in data.

• Examples of parametric models inc...read more
Answered by AI
Add your answer

Q1. Complex sql question based on lead lag
Add your answer
Q2. Question based on data index
Add your answer
Q3. Question based on data engineer
Add your answer

Q1. Tell me about your self?
Add your answer
Q2. What is maths and stats
Ans. 
Maths and stats refer to the study of mathematical concepts and statistical methods for analyzing data.
• Maths involves the study of numbers, quantities, shapes, and patterns.

• Stats involves collecting, analyzing, interpreting, and presenting data.

• Maths is used to solve equations, calculate probabilities, and model real-world phenomena.

• Stats is used to make informed decisions, draw conclusions, and test hypotheses.

• Both ma...read more
Answered by AI
Add your answer

Confusion matrix what are your job rolls explain me Gradient boosting algorithm?

General maths n reasoning ques

1 DSA medium level question were asked

Any random topic that we have to speak upon

Q1. Discussed everything written in the resume
Add your answer
Q2. Skillsets written in resume
Add your answer

Basic DP, Array Questions

Q1. Resume Walkthrough and Discussion, Medium level coding questions
Add your answer

Q1. Discussion with Manager
Add your answer

Q1. Normal HR round
Add your answer

Q1. About your project and experience
Add your answer

Core Python questions were asked