Random Sampling

_________ 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

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Manny wants to know how many students at GMS enjoy solving math problems. What is the best sampling method?

• ask for 20 volunteers to discuss whether they enjoy solving math problems

• ask the last 20 people to arrive at GMS

• Randomly ask 2 students in the hallway

• Ask every 20th student that walks into school

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is not a good sample in this case?

• The sample didn't include students.
• The sample is too small.
• The sample can only be accurate if each teacher is included in the sample

Tags

CCSS.7.SP.A.1

Graham wants to find out the most popular football team at a game between the home team and the visiting team. Which of the following methods will give him the most accurate results?

• Surveying the cheerleaders for the home team

• Surveying people wearing hats for the visiting team

• Surveying a group of people standing in line for tickets

• Surveying people who do not live in the home team’s city

Juan asked 10 of his friends what they thought about a new video game. Is this sample of the students in the school biased?

• Yes

• No

Which survey question is most likely to result in an unbiased sample?

• Which do you prefer, apples or oranges?

• Don't you prefer apples to oranges?

• Do you prefer apples, like I do, or oranges?

• Which do you like better, delicious apples or boring oranges?

Tags

CCSS.7.SP.A.1