In order to move up on the career ladder, additional education is often required? select the best answer from the choices provided
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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

Hurrry plzzz 16 points which major economic activity in the middle east occurs largely in the areas circled on the map above? a. coal mining b. farming c. nomadic herding d. oil production

What do supreme court decisions based on the first amendment usually involve?