Q: Estimate the number of students and interns in and around New York.

Clarifying Questions:
1. What do you mean by a student – School Students or College ones?
Ans. Consider both school, highschool and college/university.

Assumptions:
Newyork Population – 20M
Neglecting the playschool and nursery students.

Calculation of Number of students in Newyork:
Total Number of Students = School + High School + College

NY Population: 20M
Age 0 – 3 : 5% – 1M
Age 3 – 14: 15% – 3M
Age 15 – 18: 15% – 3M
Age 18 – 24: 15% – 3M
Age 25 – 40: 25% – 5M
Age 40 – 60 : 15% – 3M
Age 60+ : 10% – 2M

School Students: X*3M

X = Not All kids in this age group would be able to get education. considering primary education has become a necessity these days and america being one of the well developed countries, i am considering 70% of these age group are students

School Students: 2.1M

Similarly, 60% of school students opt for Highschool

High School: 0.6*2.1 = 1.2M

Considering the 40% of the Highschool students opt for further higher studies

University/College: 0.4*1.2 = 0.5M

Total Number of students = 3.8M students (19% of NY Population)

Interns:
Assumptions:

Majorly, College students opt for the internships, so neglecting the other students and non – students for the ease of calculation.

Interns = 0.015 + 0.045 + 0.06 + 0.09 = 0.21M Interns