Question

Dr. Martell decides to conduct a survey of her class to determine whether the number of breaks is sufficient for a three-hour class period. She assigns each of her 40 students a number and randomly selects 20 using a computer program. Using the language of research methodology, Dr. Martell's sample is both _____ and _____.

Answer 1

random , representative.

Step-by-step explanation:

A random sample is a type of sample which is chosen randomly. It is more often known as randomly selected sample and it is used to prevent any bias or any other undesirable effects. The selection are made by chance.

And a representative sample refers to a selected segment of any group of sample which closely corresponds the population as the whole under examination. A random sampling is generally used to get a representative sample from the larger sample group.

In the context, Dr. Martell's collection of sample refers to both a random sample as well as a representative sample as she selects randomly 20 students from the given set of student groups which forms the larger group.