Exploring Random Sampling

For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 10 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

• Tyler’s sample is not random because he only asks 10 people

• Tyler’s sample is not random because he asks people in a gymnasium.

• Tyler’s sample is random because he asks the first 10 people he sees.

• Tyler’s sample is random because he asks each person the same question

Andre wants to survey a random sample of the student body in his school to find out which day after school would work best for students to do volunteer work for a local charity. Which sample would best represent the student body?

• asking twenty students waiting in line for lunch

• asking twenty students on their way to the bus after school

• asking one person from the seventh grade daily for twenty days

• asking one person each from twenty different classrooms during the first class period

Four candidates are running for school president. A random sample of students at the school are surveyed about which of the candidates they are likely to choose. The chart above shows the number of students from the random sample who chose each candidate. A total of 800 students are expected to vote in the election for school president. Based on the information shown in the chart, which election outcome is most likely?

• Rasheed will win with 192 votes.

• Rasheed will win with 189 more votes than he had in the survey

• Janelle will win with 8 more votes than the second-place finisher, Rasheed.

• Janelle will win with 128 more votes than the second-place finisher, Rasheed

Lee will conduct a survey at his school. He will select a random sample of students at the school to take the survey. Which sample is the best random sample for Lee to use?

• every other student in the drama club

• every fifth student who enters the school

• every student who rides the same bus as Lee

• every fourth student in Lee’s homeroom class

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.

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

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

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

• Sample

• Population

• Random Sample

• Quartile

Which method is most likely to produce a random sample of 5 students from a school club?

• selecting 5 club members who have brown hair

• selecting the 5 club members who have raised the most funds for the club

• selecting 5 club members from a hat containing the names of all members

• selecting the 5 club members who arrive last to a club meeting

The owners of a local game store put all their customers' email addresses in a hat. They draw 150 names and email them a customer survey.

• Random

• Not Random