Question

determine if the following study is best described as an observational study, survey, or experiment. a student wanted to estimate the probability that a tree would fall down within a year. she counted the number of trees on a 5 - acre property. then, after a year had passed, she counted the number of trees remaining on the same 5 - acre property. observational study survey experiment none of the above.

Explanation:

An observational study just observes and records data without interfering. Here, the student only counted trees at two - different times without manipulating any variables. A survey involves collecting data through questionnaires or interviews, and an experiment involves manipulating variables. Since there is no manipulation or survey - like data collection, it's an observational study.

Answer:

Observational Study