"Estimate the number of visitors at amusement park in city X"
I don't know if its better to segment based on age or income but my gut tells me to go with age.
so this is what I'll do:
1- Whole population of city X
2- segment based on age (young (0-20), middle aged(21-50's), old (60 and above)
3- From children exclude new borns and minorty who are sick or on wheel chairs so (5 or 10% from children won't visit)
4- Middle aged will mostly go with friends or family so 80% will visit . (10% middle aged and very busy, other 10% don't have children or are not intrested).
5- Most of old people won't visit so maybe 10-15% only would visit with their families.
6-Add all numbers to get number of vistors.
7- assume 10% only of total vistors will visit the park twice a year.
8- Add step 6 & 7
this is my approach to the question and I'm not sure wether to stop at step 6 or continue and consider 7 & 8. Kindly share your opinion and feedback on my approach.