Population and sample

This is a discussion question in my class that needs to be answer with 100 words. Please use own words

I remember that the use of a random number generator on a pocket calculator worked quite well when needing a random sample, .

Some other ways to attempt to gt a true random sample:

In a survey, pick every 5th customer or employee.

Flip a coin – heads yes for that customer or employee, tails no.

Can you think of others?

How about a specific computer program?