For IndividualsFor Educators
ExpertMinds LogoExpertMinds
ExpertMinds

Ace your certifications with Practice Exams and AI assistance.

  • Browse Exams
  • For Educators
  • Blog
  • Privacy Policy
  • Terms of Service
  • Cookie Policy
  • Support
  • AWS SAA Exam Prep
  • PMI PMP Exam Prep
  • CPA Exam Prep
  • GCP PCA Exam Prep

© 2026 TinyHive Labs. Company number 16262776.

    PracticeAQA GCSEAQA GCSE Statistics Higher Tier Paper 1Question 03
    Easy1 markMultiple Choice
    Statistical Measures and CalculationsMeanMedianModeBi-modal

    AQA GCSE · Question 03 · Statistical Measures and Calculations

    Which of these data lists is bi-modal and has the mean double the median?

    Answer options:

    A.

    4, 4, 6, 6, 30

    B.

    2, 4, 6, 6, 42

    C.

    0, 6, 6, 24, 24

    D.

    0, 0, 6, 6, 38

    How to approach this question

    1. Understand the definitions: - **Bi-modal**: The data set has two modes (two values that appear most frequently). - **Median**: The middle value when the data is in order. - **Mean**: The sum of the values divided by the number of values. 2. Go through each option (A, B, C, D) and check both conditions. 3. **For option A:** Modes are 4 and 6 (bi-modal). Median is 6. Mean is (4+4+6+6+30)/5 = 10. 10 is not 2*6. 4. **For option B:** Mode is 6 (uni-modal). This option can be eliminated. 5. **For option C:** Modes are 6 and 24 (bi-modal). Median is 6. Mean is (0+6+6+24+24)/5 = 12. 12 is 2*6. This option satisfies both conditions. 6. **For option D:** Modes are 0 and 6 (bi-modal). Median is 6. Mean is (0+0+6+6+38)/5 = 10. 10 is not 2*6. 7. Conclude that C is the correct answer.

    Full Answer

    C.0, 6, 6, 24, 24✓ Correct
    This question requires checking two statistical properties for each data set. - **Bi-modal**: A data set is bi-modal if it has two values that occur with the same highest frequency. - **Mean and Median**: The median is the middle value of an ordered dataset. The mean is the sum of all values divided by the count of values. Let's analyze option **C: 0, 6, 6, 24, 24** 1. **Mode**: The numbers 6 and 24 both appear twice, which is more than any other number. So, it is bi-modal. 2. **Median**: The data is already in order. The middle value is the 3rd one, which is 6. So, the median is 6. 3. **Mean**: The sum is 0 + 6 + 6 + 24 + 24 = 60. There are 5 values. The mean is 60 / 5 = 12. 4. **Comparison**: The mean (12) is double the median (6). Both conditions are met for option C.

    Common mistakes

    ✗ Only checking one of the conditions (e.g., finding a bi-modal set but not checking the mean/median relationship). ✗ Calculation errors when finding the mean. ✗ Incorrectly identifying the median from an unordered list.
    Question 02All questionsQuestion 04

    Practice the full AQA GCSE Statistics Higher Tier Paper 1

    42 questions · hints · full answers · grading

    Sign up freeTake the exam

    More questions from this exam

    Q01Two fair spinners, each numbered 1 to 8, are spun. The numbers they land on are added up. What is...EasyQ02Here is the definition of a term used in sampling. 'Those who are actually available to be part o...EasyQ04This graph was seen on the BBC News App. Circle the letter of the statement for the graph which i...EasyQ05.1A researcher wants to survey 500 secondary school students in a large city to find out their favo...EasyQ05.2Give two other reasons why this sample of students might not be representative of all secondary s...Medium
    View all 42 questions →