Interview Question

Data Analyst Interview

-Dublin, Dublin

Analytic Partners

How many barbers were there in Ireland?

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Its a basic Fermi problem.

Anonymous on

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There are 4.83 million people in Ireland I would assume that 50% of them are males I would assume that an average male goes to the barber once every month I would assume that each barber can deliver services to 3 people per hour I would assume that each barber works an average of 30*4*11 hours I would assume that an average barber has an occupancy ratio of 70% 4830000*0.5*1 barber services demand per month in Ireland (males) 30*4*3*0.7 barber services per barber and month There are around 9.000 barbers in Ireland

AGM on

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