HELP URGENT
WHERE is the population density highest in Brazil?

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

Why do drivers have difficulty seeing side traffic at t-intersections in rural areas?

Does (flavius) josephus believe the romans were merciful when they conquered people? how does he try to persuade the reader to support his belief?