Random Surveys

_________ is a sample in which each individual or object in the entire population has na equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

Tom surveys 40 moviegoers by randomly choosing their names.  What type of sampling method is this?

• Random

• Convenience

• Biased

To choose a sample for a survey of seventh graders, the student council puts pieces of paper with the names of all seventh graders in bag, and selects 30 names.

• biased

• random

For a survey, a company manager assigned a number to each of the company's 500 employees, and put the numbers in a bag. The manager chose 20 numbers and surveyed the employees with those numbers.

• biased

• random

A middle school surveyed random students to find out which elective the students want to take next year. The results are shown here. How many total students were surveyed?

• 20

• 40

• 14

• 6

?

• Thomas should ask 30 students in the eighth grade.

• Thomas should ask 30 of his closest friends.

• Thomas should ask 30 students in the seventh grade.

• Thomas should ask 30 people eating lunch at McDonalds across the street from school.

Sample in which each individual or object in the entire population has an equal chance of being selected.

• Simple Event

• Sample

• Random Sample

• Scatter Plot

A sample in which each individual or object in the entire population has an equal chance of being selected.

• biased sample

• population

• random sample

• sample

Select all the options that would produce a random sample.

• Survey the first 50 people that walk in the doors.

• Survey everyone at his jazz band practice.

• Survey two randomly chosen students in every homeroom.

• Assign each student in the school a number, randomly choose 50 numbers, and survey those students.

• Survey every third student that he sees on his walk to school.

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Biased Sample