Question

Random sample of 80 students from 340 seniors. 12 are vegetarians. Based on this data, whatis Mary's best estimate of the total number of seniors at the college who are vegetarians?

Answer 1

vegetarians80 out of 340 students were interviewed and 12 are found to be vegetarian.

So the fraction is

$\frac{12}{80}=\frac{3}{20}$

The best estimate of the total number of vegetarian people is,

$\frac{3}{20}\times340=51$

So, 51 students are vegatarians.