Averages and Spread

Averages and Spread Quiz

Spec S4 · Edexcel GCSE Maths: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

  1. 1. How is the mean calculated?

    • A. A) The middle value of ordered data
    • B. B) Sum of all values ÷ number of values
    • C. C) The most frequent value
    • D. D) Largest value − smallest value

  2. 2. What is the modal class in a grouped frequency table?

    • A. A) The class with the smallest frequency
    • B. B) The class with the highest frequency
    • C. C) The middle class interval
    • D. D) The class containing the mean

  3. 3. Which average is LEAST affected by an outlier?

    • A. A) The mean
    • B. B) The median
    • C. C) They are equally affected
    • D. D) Neither can be calculated with an outlier

  4. 4. A data set has lower quartile 12 and upper quartile 28. What is the interquartile range?

    • A. A) 40
    • B. B) 16
    • C. C) 12
    • D. D) 28

  5. 5. Class A has a higher mean than Class B but also a much larger range. What does this suggest?

    • A. A) Class A's results are typically higher, but also less consistent (more spread out)
    • B. B) Class B has more students
    • C. C) Class A and Class B have identical results
    • D. D) The mean is unaffected by the range

Quiz