You choose thirty students out of a college with 5,357 students. Females compose one-third of the thirty students. This
is an example of

This is called a sample.

In statistics, we take a random 'sample' of people so that we can estimate values for the entire population!

So, say for example you want to find out what percent of students in your school are girls. You take a sample, like this again, of 30 students, and 3/10 are girls, then you can apply it to the rest of the population.

Hope this helps!

P.S. Stay Safe!

i think is g(1)=-1.

hope that i can

it’s the first one your welcome