Which is an example of a survey involving quantitative data? the favorite food of each person the number of cavities each person has had the color of the walls in each person’s bedroom the type of carnico wanted to determine the number of students in his school who buy school lunch. he walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own.

which method did he use to collect his data?

survey
simulation
experiment
observational study that each person owns

The correct answers are:

The number of cavities each person has; and observational study.

Explanation:

Quantitative data is data that can be described using numbers.  The only one listed that can be described with numbers is the number of cavities each person has.

Observational studies are ones in which a researcher observes but does not interfere.  Walking the cafeteria and seeing who has what type of lunch is a method of observation, so this is an observational study.

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation:

its a straight line parallel to the time axis