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WalMart Data Science Interview Questions

Questions Answers Views Company eMail

Write the code to reverse a Linked list.

443

What assumptions does linear regression machine learning algorithm make?

364

What data structures are available in the Pandas package in Python programming language?

368

A stranger uses a search engine to find something and you do not know anything about the person. How will you design an algorithm to determine what the stranger is looking for just after he/she types few characters in the search box?

425

What do you understand by parametric and non-parametric methods? Explain with examples.

331

State some use cases where Hadoop MapReduce works well and where it does not.

349

How will you fix multi-colinearity in a regression model?

340

Have you used sampling? What are the various types of sampling have you worked with?

325

What is the difference between an iterator, generator and list comprehension in Python?

364

What is the difference between a bagged model and a boosted model?

342

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Un-Answered Questions

How do you prevent excel cells from overlapping?

700

WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2581

Name the work email addresses that are currently supported?

Specify the locations where spring can publish its artifacts.

406

i want to do sap course as i am fresher(mba hr) is it usefull to do sap hr without experience

1987

How is the nine-patch image different from a regular bitmap?

1050

How can you create singleton service in angular 2?

807

How we can change the url for yii::app()->homeurl in yii2?

different types of protocols.......?

1899

How to enable debug mode in wordpress?

173

Compare R with other technologies.

Do you think the cab service started has affected the local transport system in the economy?

1169

Does hibernate support mongodb?

346

Can we call the run() method instead of start()?

1049

The number of measuring units from an arbitarary starting point in a record,area,or control block to some other point a) recording pointer b) offset c) branching d) none

1264