Abacus Staffing & Services Senior Data Analyst Interview Questions and Answers

Q1. Practice excel well if you not good in Excel you might not crack job
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Q2. Only HR and technical round
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Probility and z-test

Q1. What is data science
Ans. 
Data science is a multidisciplinary field that uses scientific methods, processes, algorithms, and systems to extract knowledge and insights from structured and unstructured data.
• Data science involves collecting, analyzing, and interpreting large amounts of data to make informed decisions.

• It combines statistics, machine learning, data visualization, and computer science to uncover patterns and trends in data.

• Data scien...read more
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Q2. What is Gen AI
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Gen AI refers to the next generation of artificial intelligence that is capable of learning, adapting, and evolving on its own.
• Gen AI is designed to mimic human-like cognitive abilities such as reasoning, problem-solving, and decision-making.

• It can continuously learn from new data and experiences to improve its performance over time.

• Examples of Gen AI applications include self-driving cars, personalized recommendation ...read more
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Q1. What is your salary
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My salary is competitive based on my experience and qualifications.
• My salary is based on my experience, qualifications, and the market rate for data analysts.

• I have received competitive offers from other companies in the past.

• I am open to discussing salary expectations during the negotiation process.
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Q2. Expectation is ok but
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Bollywood movies why not getting oscars

Great it was there 3 questions was there and they were preety tough

Aptitude test based on RS Agarwal and similar numerical types

Q1. Reverse a link list and reverse a string
Ans. 
Reverse a linked list and reverse a string
• To reverse a linked list, iterate through the list and change the pointers to reverse the order

• To reverse a string, use a loop to iterate through the characters and build a new string in reverse order

• Example: Linked list 1->2->3->4 can be reversed to 4->3->2->1

• Example: String 'hello' can be reversed to 'olleh'
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Q2. Check for weighted sum
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The question is asking to calculate the weighted sum of a set of values.
• Calculate the product of each value with its corresponding weight

• Sum up all the products to get the weighted sum

• Example: Values [2, 3, 4] with weights [0.5, 0.3, 0.2] would result in (2*0.5) + (3*0.3) + (4*0.2) = 1 + 0.9 + 0.8 = 2.7
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Q1. Explain Analysis
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Analysis is the process of examining data or information to uncover insights, patterns, and trends.
• Analysis involves breaking down complex information into smaller components for better understanding.

• It often includes identifying relationships between different variables or factors.

• Analysis can be done using various methods such as statistical analysis, qualitative analysis, or data mining.

• For example, analyzing sales ...read more
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Easy level, i face speed problem
,but i ,managed to solve.

Easy medium hard 3 questions

Q1. What are the questions asked?
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Q2. What type of questions asked?
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Q1. What are the questions asked?
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