Walmart Senior Manager Analytics Interview Questions and Answers

Q1. Bias and variance with respect to model
Ans. 
Bias and variance are two types of errors that can occur in a model.
• Bias refers to the error introduced by approximating a real-world problem, leading to underfitting.

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

• Balancing bias and variance is crucial for creating a model that generalizes well to unseen data.
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Q2. Hypotheses test
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Given a excel data and asked to find the sumif, pivot table, calculated field creation

given logical thinking questions

Questions on the generic costing as it is for vendor cost management team
-About inventory turnover ratio
-inflation impact on the cost increase in raw material or Finished product
-aptitude question

MySQL basics,
Sorting,
group by,
pivot

Case studies basic to advanced MySQL.

Sql questions, phython, learn case statements like there is milk category and sub caetgories on this they will ask questions, also problem solving