Greta collected data about the amount of time each student in her geography class spends studying. If the range of these data is 3, what does this reveal about the data? (4 points)

Group of answer choices

All the students in her geography class spend exactly 3 hours studying.

The smallest and largest data values are 3 units away from each other.

All the students in her geography class spend an average of 3 hours studying.

The middle data value for time spent studying by all students in her class is 3 hours.