Write a python program to remove duplicates , keep the first occurrance
Data Interview Questions
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How will you analyze if launching stories is a good idea? What data would you look at?
You're at a casino with two dice, if you roll a 5 you win, and get paid $10. What is your expected payout? If you play until you win (however long that takes) then stop, what is your expected payout?
Prepare on financial statements
sql and python question 5+5
Why I believe I would be a good fit for PCA pharmacy.
the last interview (final) was weird. It felt as if they were delibralatty asking irrelevant questions. 1. Assumption of k-means clustering 2. what is logit function, write down the equation. 3) Formula for anova - i mentions test statisic was SSB/SSW - but he wanted theoritical answers. This particular person is a VP in Mumbai, calls himself data scientist but feels like a college professor.
I was given a tiny dataset in Excel (less than 250 rows) with only 4 columns, i.e. dateordered, datereturned, orderstatus & orders Exercise 1: Crunch the data and tell us whether our return rate is trending up or down. Additional insights are welcome, but not required Exercise 2: Write the SQL code to produce number of completed orders by date
you have 8 balls. one ball weighs 1.2kg rest each weighs 1kg. you need to do 2 measurements only. how will find that 1.2kg ball.
perchè è meglio un ciclo for o perchè un ciclo while
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