The population contains all individuals/subjects about which we want to collect information.

A sample is the part of the population of which information was actually collected.

We then note that the sampleis the 300 randomly selected students attending a particular Ivy League university and thus the population then contains all students attendling partictular ivy League university.

A sample is the part of the population of which information was actually collected.

We then note that the sampleis the 300 randomly selected students attending a particular Ivy League university and thus the population then contains all students attendling partictular ivy League university.