What is the computational complexity of finding the most frequent word in a document?
Data Interview Questions
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Suppose you have a list of strings, each of which is an English sentence. # Output a dictionary out_dict that maps a key n to the list of words that occur in n different sentences. # E.g. # Input: str_list = [ “The cat ate the fish”, “The cat saw the roses”, “The roses are red” ]
case study: credit card insurance profit per customer cost of mailing $0.5, response rate 1%, average balance per month $1000, insurance charges 1% of average balance monthly, customer claim rate 5% (once insured customer files a claim, the balance will be wiped and C1 lose $1000). Question: profit per customer, graph claim rate vs response rate, graph profit vs response rate and find the response rate for maximum profit (r=1%)
A time you avoided an obstacle, A time you had to learn something new, Third one was something along the lines of: A time you had to request extra help to complete a project/task
How would you explain customer LTV in the context of eHealth
How would you address the overfitting problem?
If a plant grows twice the rate of what it grew the previous day then when will it reach half of its maturity height
Technical case interview which is a mix of modelling skills + classical case interview structure
Most unexpected question was along the lines of this: You are called to a director's office to trouble shoot his Unix box, when you arrive you are shown the machine by his admin who tells you it was working last night before they left for the evening. When you move the mouse it does nothing at all, no sound, no display - what do you do first?
How to reverse strings with changing Position - Answered
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