18. You are surveying students to find out their opinion of the quality of food served in the school cafeteria.
You decide to poll only those students who buy hot lunch on a particular day. Is your sample random?
Explain.
3 answers
No, the sample is not random. Students who buy hot lunch on a particular day may not be representative of the entire student population or those who regularly buy lunch from the cafeteria. The sample may be biased towards those who have a positive opinion of the food or who have enough money to buy lunch that day. A random sample would involve selecting students from the entire student population or a subset of the population using a random selection method, such as a random number generator or a table of random numbers.
can you shorten it
No, the sample is not random. It may be biased towards students with a positive opinion of the cafeteria food or those who have enough money to buy lunch on that particular day. A random sample would involve selecting students from the entire population or a subset using a random selection method.