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Class 9 Maths Unit 11: Basic Statistics

Free MCQ practice for this FBISE unit. Three tests, each with 1 minute per question, automatic checking and an explanation after every answer.

For 9th class Federal Board (FBISE) students: Maths Chapter 11, Basic Statistics, online MCQ test.

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Notes

Animated slides

Short animated slides that explain the unit one idea at a time, plus a printable PDF. Read these first, then practise.

Beginner Practice

15 questions · 15 min

Core definitions and basic skills with clear, direct questions.

Advanced Practice

20 questions · 20 min

Tougher, conceptual questions with real-life contexts and 'why is this wrong?' items.

Exam Ready

25 questions · 25 min

A mix of question styles and difficulty for final revision. Practice only, not an official paper.

Try a few questions

Open a question to see the options and the explained answer. Then take the full test to practise under time.

Sample question 1

The arithmetic mean of n values is:

  1. the most frequent value
  2. n ÷ (sum of the values)
  3. (sum of the values) ÷ n
  4. the middle value of the arranged data

Answer: C. Mean = (sum of all values) ÷ (number of values).

Sample question 2

Which value represents a whole class when finding the mean of grouped data?

  1. Its frequency
  2. Its lower limit
  3. Its upper limit
  4. Its class mark (mid-value)

Answer: D. The exact values inside a class are unknown, so the class mark is used to represent the class.

Sample question 3

The mean of 8 values is 25. Seven of them are 10, 22, 30, 18, 27, 35 and 20. Find the eighth value.

  1. 25
  2. 162
  3. 38
  4. 200

Answer: C. The total is 8 × 25 = 200. The seven values add to 162, so the eighth is 200 − 162 = 38.

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