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Samples and populations

7th grade (Year 8 in England) · 16 questions · Common Core: 7.SP.A.1, 7.SP.A.2 · England: KS3 Statistics, GCSE Foundation Statistics

Name

Date

Score/ 16

  1. Question 1

    In a random sample of 40 students, 13 said they walk to school. There are 1440 students in the school. Estimate how many walk to school.

    Answer

  2. Question 2

    A survey is planned by picking names out of a hat containing every student's name. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  3. Question 3

    In a random sample of 25 students, 19 said they walk to school. There are 975 students in the school. Estimate how many walk to school.

    Answer

  4. Question 4

    A survey is planned by picking names out of a hat containing every student's name. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  5. Question 5

    In a random sample of 25 students, 3 said they walk to school. There are 500 students in the school. Estimate how many walk to school.

    Answer

  6. Question 6

    A survey is planned by asking only the members of the football team about favourite sports. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  7. Question 7

    In a random sample of 40 students, 15 said they walk to school. There are 400 students in the school. Estimate how many walk to school.

    Answer

  8. Question 8

    A survey is planned by picking names out of a hat containing every student's name. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  9. Question 9

    In a random sample of 50 students, 31 said they walk to school. There are 850 students in the school. Estimate how many walk to school.

    Answer

  10. Question 10

    A survey is planned by picking names out of a hat containing every student's name. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  11. Question 11

    In a random sample of 25 students, 14 said they walk to school. There are 775 students in the school. Estimate how many walk to school.

    Answer

  12. Question 12

    A survey is planned by picking names out of a hat containing every student's name. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  13. Question 13

    In a random sample of 25 students, 21 said they walk to school. There are 850 students in the school. Estimate how many walk to school.

    Answer

  14. Question 14

    A survey is planned by asking only the members of the football team about favourite sports. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

  15. Question 15

    In a random sample of 50 students, 6 said they walk to school. There are 650 students in the school. Estimate how many walk to school.

    Answer

  16. Question 16

    A survey is planned by asking every 10th person on the school register. Is this likely to give a fair (unbiased) sample?

    • A. Yes
    • B. No, it is biased

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Answer key: Samples and populations

  1. 1. 468

  2. 2. A. Yes

  3. 3. 741

  4. 4. A. Yes

  5. 5. 60

  6. 6. B. No, it is biased

  7. 7. 150

  8. 8. A. Yes

  9. 9. 527

  10. 10. A. Yes

  11. 11. 434

  12. 12. A. Yes

  13. 13. 714

  14. 14. B. No, it is biased

  15. 15. 78

  16. 16. A. Yes