AB InBev India Data Science Lead Interview Questions and Answers for Experienced

Q1. What is autocorrelation?
Ans. 
Autocorrelation is a statistical concept that measures the relationship between a variable's current value and its past values.
• Autocorrelation is the correlation of a signal with a delayed copy of itself.

• It is used to detect patterns or trends in time series data.

• Positive autocorrelation indicates a positive relationship between current and past values, while negative autocorrelation indicates a negative relationship.

• F...read more
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Q2. Linear Regression Assumptions
Ans. 
Linear regression assumptions include linearity, independence, homoscedasticity, and normality.
• Assumption of linearity: The relationship between the independent and dependent variables is linear.

• Assumption of independence: The residuals are independent of each other.

• Assumption of homoscedasticity: The variance of the residuals is constant across all levels of the independent variables.

• Assumption of normality: The resid...read more
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Q3. P value in simple terms
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P value is a measure used in hypothesis testing to determine the significance of the results.
• P value is the probability of obtaining results at least as extreme as the observed results, assuming the null hypothesis is true.

• A small P value (typically ≤ 0.05) indicates strong evidence against the null hypothesis, leading to its rejection.

• A large P value (> 0.05) suggests weak evidence against the null hypothesis, lead...read more
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Q4. Bagging and Boosting algorithms
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Q5. Multicollinearity
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Gm to vp interview process

As per experience and previous background

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Q1. What is P2P
Ans. 
P2P, or peer-to-peer, is a decentralized network model where participants interact directly without intermediaries.
• P2P networks allow users to share files directly, e.g., BitTorrent for file sharing.

• In finance, P2P lending platforms connect borrowers and lenders directly, like LendingClub.

• P2P can also refer to cryptocurrency transactions, where users trade directly without banks.
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Q2. How to manage vendor payments
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Effective vendor payment management ensures timely payments, maintains relationships, and optimizes cash flow.
• Establish clear payment terms: Define payment schedules and methods in contracts to avoid confusion.

• Implement a tracking system: Use software to monitor invoices and payment statuses, ensuring no payments are missed.

• Prioritize payments: Assess vendor importance and payment terms to prioritize critical suppliers...read more
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Q1. Woking principle and cost analysis
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Q1. Working and costing , good achivement
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Q1. 7 P's of Marketing
Ans. 
The 7 P's of Marketing are key elements in a marketing strategy.
• Product - what you are selling

• Price - how much it costs

• Place - where it is sold

• Promotion - how you market it

• People - who are your target customers

• Process - how the product is delivered

• Physical Evidence - tangible aspects of the product/service
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Q2. Sales executive job roles
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Q1. Tell me about yourself?
Ans. 
I am a dedicated and detail-oriented analyst with a strong background in data analysis and problem-solving.
• Experienced in conducting thorough data analysis to identify trends and insights

• Skilled in creating reports and presentations to communicate findings to stakeholders

• Proficient in using analytical tools such as Excel, SQL, and Tableau
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Q1. Depends on your current skills & learnings
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Q2. How to face the top management aggressively, so all these are depends on your confidence and ability.
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Q1. Self confidence only
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