How can we stop corruption being a student

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

When a explodes, radioactive material is dispersed. understanding terrorism: select the best answer from the choices provided. a. germ bomb b. dirty bomb c. chemical explosive d. commercial airplane

Queer theory emphasizes the idea of a single gay, lesbian, bisexual, heterosexual, or transgender identity. true or false