Tiger Analytics Data Analyst Interview Questions, Process, and Tips

Questions based on sql python (hard level)

Q1. Live coding round on python
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Q2. Live coding questions on sql.
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We were provided with 3 basic data stucture questions all three were leetcode medium easy question. Total time alloted was 1hr for three questions.

2nd round was again coding round but this time question level was hard plus 10 MCQs were also given based on basic computer science knowledge.
There were 2 data structure question that was leetcode medium hard questions.

Q1. How can you prove to the client that a students with higher classes are taller than that of lower classes?
Ans. 
We can use statistical analysis to prove that students in higher classes are taller than those in lower classes.
• Collect height data of students from different classes

• Use statistical measures like mean, median, and mode to compare the heights of students in different classes

• Perform hypothesis testing to determine if the difference in height between classes is statistically significant

• Visualize the data using graphs and ...read more
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Q2. Compare two arrays in python and print if both of them are same or not?
Ans. 
Compare two arrays in python and print if both of them are same or not.
• Use the '==' operator to compare the arrays.

• If the arrays have the same elements in the same order, they are considered the same.

• If the arrays have different elements or different order, they are considered different.

• Print 'Same' if the arrays are the same, otherwise print 'Different'.
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Q3. What is permutation and combination and how is it used in data science?
Ans. 
Permutation and combination are mathematical concepts used to count the number of possible outcomes in a given scenario.
• Permutation is the arrangement of objects in a specific order while combination is the selection of objects without considering the order.

• Permutation formula: nPr = n!/(n-r)! where n is the total number of objects and r is the number of objects selected.

• Combination formula: nCr = n!/r!(n-r)! where n i...read more
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2nd round consists of 10 MCQ and 2 python coding Question