Estimation from image

Anonymous A asked on Aug 05, 2019 - 2 answers


I believe estimating values (vines per area) from the image only to be a nigh impossible task. Everyone I have given this case to struggles with this. Any advice on how to proceed?


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Best Answer
Alexander replied on Aug 06, 2019

I think this particular question is not designed to reach an accurate result. There are simply too many assumptions involved, and their errors add up. Instead, the question tests whether the candidate can logically develop a reasonable approach to this problem, and should be treated as such.

Radu replied on Oct 07, 2019
BCG 2nd interview. 15yrs exp, Exec MBA, MSc. Time zone GMT+2

I addition to Alexander's reply, I might add my 2 cents:

  1. you can quickly estimate the row spacing by using the height of an average human (pictured) and then
  2. eyeball the size of a leaf (in case you've never seen one in real life) and from there estimate the size of the grape bunch in relation to that
  3. assume that grapes have a relatively similar density to water, and with the size of the bunch estimated you can then ballpark its weight

again, there are a few different ways to do this but it should be just done quickly so you can focus on the core problem.