What are the divisions of florida's constitution?

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

Ineed ! what is the best way to combat test anxiety? a. prepare thoroughly for the test c. picture yourself getting an a b. take deep breaths during the test d. none of these

Radiation was first detected by a ?