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Case: How many elephants are there?

Anonymous A

Help! Tbh I have no idea how to approach this question. How would you solve it??

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Anonymous C replied on 12/07/2017

Our Goal: #elephants

  1. #elephant = (elephant to human ratio) * (total human population)
    • = 1 truck per 10,000 person (assumption) * 7B people
    • = 7,000,000,000/10,000 elephants in total
    • =70,000 elephants
  2. Life-span of elephants is approximately 70 years (in a poaching free forest)
  3. #elephants / lifespan
    • = 70,000/70y = 1000/y (this is the #elephants dying every year)
    • looks reasonable
  4. If you estimate how many elephants are born every year
    • say we have a positive trend in elephant birth due to WWF's effort
    • Approximately 5% per year, so 5% of the total amount will increase
    • = 1000*5% = 50
    • 1050 elephants take birth every year.
  5. The answer would be: there are 70,000 elephants in the world today and about 1050 take birth every year
Freddy Ray replied on 12/05/2017

Always segment. You maybe able to segment by Wild vs Zoo...or segment by Continents vs percentage each continent has Elephants etc

Anonymous B replied on 12/05/2017

42

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