Rima wants to learn more about the heights of the students at Spring Valley Middle School. The school teaches students in through Each subject taught different teacherchange classrooms every period. Students don't have class every period, but every student has a homeroom ve from this populationthe the questions follow. Sample A: Survey four random students in each of Rima's classes.

Sample B: Survey two random students from each homeroom class.

Sample C: Survey three random girls from every third-period class.

Sample D: Survey every sixth person in the student directory.

Sample E: Survey every third person in the band directory.

Questions:

Is sample A a random sample ? Why or why not

Is sample B a random sample ? Why or why not

Is sample C a random sample ? Why or why not

Is sample D a random sample ? Why or why not

Is sample E a random sample ? Why or why not