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This printable supports Common Core Mathematics Standard 7.SP.A.1

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Random Sampling

1.
Surveying 2 people at a library about the types of books they like to read is an example of a representative sample.
1. True
2. False
2.
Marley questions 2 athletes on her swim team about their dislike of swimming. This is a biased sample.
1. True
2. False
3.
Students in an art class were surveyed to find if they were interested in becoming artists. This survey will most likely be biased.
1. True
2. False
4.
10 members of the chess team were surveyed about whether they enjoyed playing board games. This is a biased sample.
1. True
2. False
5.
A prize was raffled off by placing the names of all those who entered into a hat and pulling one name out. This is an example of an unbiased way to select the winner.
1. True
2. False
6.
Mikey wants to estimate the number of students in his school who participate in a sport. Which of the following would be a random sampling method?
1. he surveys the students in chorus
2. he surveys 20 eighth grade students
3. he surveys the students on the basketball team
4. he surveys 50 students during each of the lunch periods
7.
Which of the following would be the best way to estimate the average number of songs a seventh grade student in your school downloads each month?
4. survey 100 seventh grade students from two middle schools
8.
There are 40 students in the chorus. The chorus director needs an estimate of the number of students in this year's chorus who plan on joining next year. What would be the most reasonable number of students in the chorus to survey to get a representative sample?
1. 1
2. 10
3. 35
4. 40
9.
There are 25 students in your English class. You want to determine if more students in your class enjoy reading or more enjoy writing. Which of the following would be the best way to randomly sample your class?