Answer :
Random sampling is defined as a method of selecting a sample from any population in such a way that every selected sample had a predetermined probability of being selected.
So,the true statements for this scenario are :
The owner chooses 20 of the slips of paper without looking.
The owner sends a survey to all clients whose phone number ends in 5.
The methods which are easy to conduct for the owner of a catering company who needs to choose a random sample of the population are B and D.
What is a random sample?
Random sampling is the method of selecting the subset from the set to make a statical inference.
The owner of a catering company wants to select a random sample of clients to find out about their food preferences.
Each method results in a random sample of the population.
A. The owner uses a database to print the names of all clients on slips of paper. No, this method takes too much time.
B. The owner chooses 20 of the slips of paper without looking. Yes, this method takes very little time.
C. The owner sends a survey to every client who spent more than $500 with the catering company in the past year. No, this method is very costly.
D. The owner sends a survey to all clients whose phone number ends in 5. Yes, this method is easier to conduct.
E. The owner sends a survey to the last 20 clients who used the catering company's services. No, this method is not appropriate for the sample.
More about the random sample link is given below.
https://brainly.com/question/12719654