Bayswater Industries Statistical Analyst Interview Questions and Answers

They give some topics related to present situation like in my GD in 2020 co. HR give topics related to that situation in our country like difference between offline education and online education system. and covid-19 pandemic related topics.

Q1. Tell me About your self ?
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Q2. What do you know about this job position ?
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Q3. What is your favourite colour ? Can i know the speciality of your favourite colour ?
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Q4. Who inspired you to go to job daily and work hard ?
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Q1. Total Experience asking about feasible interview date and time slot fixing
Ans. Explaining to HR about my over all experience and years of experince..
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Q1. Asking questions from core experience
Ans. Answering them about Logistics,Reverse Logistics, Indirect Sourcing,Asset Management,3PL,Vendor and Supplier Management as i am from Supply chain Mangement Vertical
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Q1. Asking questions on real time scenario basis
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Q1. Asking questions from Management aspect
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Q2. Answering all the answers promptly keeping positivity,logical thinking,
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Q1. HR related Questions
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They had ask the simple question during my interview process, here is the list if all questions:
1) what is df.copy()
2)why we choose inplace = True
3) Tfidf
4) confusion Matrix
5) can we use continuous variables for logistic regression
6)list and tuple diff
7)N grams, bag of words
8)access a column
9)lambda fn
10)method and object oops concepts
11) how to tackle Nan values
12) what is index in SQL
13)what is gini coefficient
14)when will you use linear regression and when you will use Decision Tres.
15) Random forest
16)Oops concepts
17)how to calculate the coefficient
18)PCA
19)SL/USL
20) classification/Regression
21)SVM
22)DT, RF, Hyper parameters in RF
23)how neural network works
24)NlP

Q1. Power bi and Tableau tools- 1) cross filter
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Round duration - 120 Minutes
Round difficulty - Medium

Q1. 
Ninja and His Secret Information Encoding Problem
Ninja, a new member of the FBI, has acquired some 'SECRET_INFORMATION' that he needs to share with his team. To ensure security against hackers, Ninja dec...read more
Ans. 
The task is to encode and decode 'SECRET_INFORMATION' for security purposes and determine if the transmission was successful.
• Read the number of test cases 'T'

• For each test case, encode the 'SECRET_INFORMATION' and then decode it

• Compare the decoded string with the original 'SECRET_INFORMATION'

• Print 'Transmission successful' if they match, else print 'Transmission failed'
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Round duration - 60 Minutes
Round difficulty - Medium

Q1. 
Equilibrium Index Problem Statement
Given an array Arr consisting of N integers, your task is to find the equilibrium index of the array.
An index is considered as an equilibrium index if the sum of elem...read more
Ans. 
Find the equilibrium index of an array where sum of elements on left equals sum on right.
• Iterate through the array and calculate prefix sum and suffix sum at each index.

• Compare prefix sum and suffix sum to find equilibrium index.

• Return the left-most equilibrium index or -1 if none found.
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Round duration - 50 Minutes
Round difficulty - Easy