Statistics Toolkit

Statistics Toolkit Quiz

Spec 6.1–2 · Edexcel IGCSE 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. What is the median of the data set: 2, 9, 4, 7, 4?
- A. 2
- B. 4
- C. 5.2
- D. 9
2. What is the range of the data set: 12, 5, 18, 9, 3?
- A. 3
- B. 9
- C. 15
- D. 18
3. A frequency table gives $\sum fx = 84$ and $\sum f = 24$ . What is the mean?
- A. 2
- B. 3.5
- C. 24
- D. 60
4. In a grouped frequency table, the class $20 \le t < 30$ has the highest frequency. What is this class called?
- A. The median class
- B. The modal class
- C. The mean class
- D. The range class
5. Two classes sat the same test. Class A: mean = 65, range = 10. Class B: mean = 65, range = 30. Which statement correctly compares them?
- A. Class A performed better on average and had more consistent scores
- B. Class A and Class B performed identically in every way
- C. The means are equal, but Class A's scores were more consistent (smaller range) than Class B's
- D. Class B's scores were more consistent because its range is larger