Each of us and Vivian city has a unique ID number she wants to know how many years a typical city buzz has been in service. Which method can Vivian use to choose a random sample of city buses. Would it be right the ID numbers of the 20 oldest buses on cards, then choose five cards without looking or choose all of the buses that have been in service for more than 20 months or a list of buses and order from newest to oldest than choose the first 20 buses on the list or use the computer to list the ID numbers and a scrambled order then choose the first 20 bus is on the list
The best method for Vivian to choose a random sample of city buses would be to use the computer to list the ID numbers in a scrambled order and then choose the first 20 buses on the list. This method ensures randomness and avoids any potential bias in the selection process.
