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Chapter 10 of 15
Revision Notes

Connecting the Dots — Revision Notes

CBSE · Class 7 · Mathematics

Connecting the Dots revision notes for CBSE Class 7 Mathematics: 4 topics in quick points. Part of the CBSE Class 7 Mathematics syllabus.

107 questions76 flashcards6 formulas & key relations5 concepts

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Key Topics to Revise

1

1. Statistical Questions and Statistical Statements

  • A statistical question can be answered by collecting data.
  • A statistical statement is a claim or summary expressed using numerical values, proportions, probabilities, or predictions.
  • Not every question has one fixed answer; some questions need data because values can vary.
2

2. Average and Arithmetic Mean

  • Average is a representative number found by adding values and dividing by the number of values.
  • Average is also called arithmetic mean or mean.
  • Mean helps compare groups fairly when totals alone are not enough.
3

3. Mean in Data with Even Count and with Missing Values

  • When the number of values is even, the median is found by taking the average of the two middle numbers.
  • A match not played, marked as —, is excluded from the count of matches.
  • A score of 0 is counted because the match was played.
4

4. Median, Outliers, and Why Median Can Be Better

  • An outlier is a value that significantly deviates from the rest of the data.
  • Outliers can pull the mean away from the centre of the data.
  • The median is often a better representative value when data has an outlier.

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Full Notes

Key Concepts

A statistical question can be answeredA statistical statement is a claimStatistics is the study of collectingMean = (Sum of allAverage number of runs scored by

Frequently Asked Questions

What are the important topics in Connecting the Dots for CBSE Class 7 Mathematics?
Key topics in Connecting the Dots include Statistical Questions and Statistical Statements, Average and Arithmetic Mean, Mean in Data with Even Count and with Missing Values, Median, Outliers, and Why Median Can Be Better. Study these first, then practise questions on each for Class 7 exams.
How should I revise Connecting the Dots for Class 7 exams?
Learn the core ideas first, then work through the 107 practice questions on Connecting the Dots. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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