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PwC Data Scientist Interview Questions, Process, and Tips
Top PwC Data Scientist Interview Questions and Answers
- Q1. Write a prompt to extract key Personal Identifiable Information given a resume
- Q2. how to find 2 nd largest number
- Q3. how to join two data frame
PwC Data Scientist Interview Experiences
5 interviews found
Hemant Yadav
Selected
I applied via Approached by Company and was interviewed in Oct 2024. There were 2 interview rounds.
Combination logic on python
(1 Question)
- Q1. Explain classification
- Ans.
Classification is a machine learning technique used to categorize data into different classes or categories based on past observations.
Classification involves training a model on labeled data to predict the class of new, unseen data points.
Common algorithms for classification include logistic regression, decision trees, support vector machines, and k-nearest neighbors.
Examples of classification tasks include spam email...
Sun Pharmaceutical Industries
Join us and thrive in a company culture that inspires and empowers.
Anonymous
Selected
I applied via Company Website and was interviewed in Apr 2024. There was 1 interview round.
(1 Question)
- Q1. Write a prompt to extract key Personal Identifiable Information given a resume
- Ans.
Extracting key Personal Identifiable Information from a resume prompt
Look for information such as full name, address, phone number, email address, date of birth, and social security number
Utilize natural language processing techniques to identify patterns and structures in the text
Consider using regular expressions to match specific formats of personal information
Ensure data privacy and security measures are in place w
Interview Preparation Tips
I applied via LinkedIn
(1 Question)
- Q1. Why do you want to for PWC?
What people are saying about PwC
I applied via Job Portal and was interviewed in Aug 2022. There were 2 interview rounds.
Coding Interview on Python for 15 minutes. Straight away to coding. Did one basic mistake first then others attended well. Basically from List operations, Pandas DF merging,concat etc.One simple pattern program etc.But no confimation yet from them
(2 Questions)
- Q1. List compehension example,List multiplications,Pandas merge,join,concat,some pattern program general;
- Q2. List comprehension example, Pandas merging code etc
Interview Preparation Tips
Then Pandas functions you should be more clear
PwC interview questions for designations
I applied via Recruitment Consulltant and was interviewed in Jul 2022. There was 1 interview round.
(2 Questions)
- Q1. How to find 2 nd largest number
- Ans.
To find the 2nd largest number in an array, sort the array in descending order and return the element at index 1.
Sort the array in descending order
Return the element at index 1
- Q2. How to join two data frame
- Ans.
Joining two data frames involves merging them based on a common column or index.
Use pandas merge() function to join data frames based on a common column or index.
Specify the column or index to merge on using the 'on' parameter.
Choose the type of join to perform using the 'how' parameter (e.g. inner, outer, left, right).
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
Interview Preparation Tips
Experience: There were 3 rounds, All related to statistics and machine learning and whatever stuffs I had mentioned in my resume. HR round was not there. The partner of the firm just briefed me a bit about the company and asked me to relax without asking any questions in the third round.
Tips: Interview will be fun if you are thorough about your resume and it will be a cakewalk to you.
General Tips: Do's :
1. Prepare for Aptitude very seriously. Puzzles are important but aptitude is must.
2. Be thorough about everything you had specified in your resume
3. Be honest while creating your resume (It helps a lot)
Don'ts :
1. Don't get broken if you are not getting selected in Day 1 or 2 or so.
2. Don't over-prepare for case interviews, they are fairly simple.
Final Tips :
Be confident about yourself. Your attitude in the interview matters a lot. And don't lie even a bit in your resume. Many got selected with a poor resume than those with huge exaggerations.
College Name: IIT Kanpur
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
More about python and SQL coding
Interview Preparation Tips
- Python
- SQL
Good knowledge of different data types
Preeti Hegde
(3 Questions)
- Q1. What is Linear regression
- Ans.
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables.
Linear regression is used to predict the value of a dependent variable based on the value of one or more independent variables.
It assumes a linear relationship between the independent and dependent variables.
The goal of linear regression is to find the best-fitting line that minimi...
- Q2. What li list and tuple
- Ans.
List and tuple are both data structures in Python, but list is mutable while tuple is immutable.
List is denoted by square brackets [] while tuple is denoted by parentheses ().
Elements in a list can be changed, added, or removed, while elements in a tuple cannot be changed once defined.
Lists are used when you need a collection of items that may change, while tuples are used for fixed collections of items.
Example: list =
- Q3. Previous company project experience
- Ans.
Developed a predictive analytics model to forecast customer churn for a telecom company.
Utilized machine learning algorithms such as logistic regression and random forests
Cleaned and preprocessed large datasets to improve model accuracy
Collaborated with cross-functional teams to gather domain knowledge and insights
(2 Questions)
- Q1. Explain pipeline flow
- Ans.
Pipeline flow is the process of moving data through a series of interconnected stages or steps in a systematic manner.
Pipeline flow involves the sequential movement of data from one stage to another, with each stage performing a specific task or transformation.
It helps in automating and streamlining the data processing process, making it more efficient and scalable.
Examples of pipeline flow include data preprocessing, ...
- Q2. Where we are using
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed in May 2024. There were 3 interview rounds.
DSA was asked. And general coding language questions were asked. Previous experience based questions were asked.
Machine Learning, Generative AI, Deep learning interview questions. 2 Coding problems based on Algorithms.
(3 Questions)
- Q1. One systems design question was there.
- Q2. Situations based problems was there.
- Q3. Questions on Past experiences.
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PwC Data Scientist Interview Process
based on 3 interviews
Interview experience
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PwC Data Scientist Reviews and Ratings
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