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Chapter 10 of 14
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Tales by Dots and Lines

CBSE · Class 8 · Mathematics

Flashcards for Tales by Dots and Lines — CBSE Class 8 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

63 questions76 flashcards5 concepts

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76 Flashcards
Card 1औसत और माध्य

किसी डेटा सेट का माध्य क्या होता है?

Answer

माध्य सभी मानों का योग है जो मानों की संख्या से विभाजित होता है। यह केंद्रीय प्रवृत्ति का एक माप है और डेटा के संतुलन केंद्र को बताता है।

Card 2Mean and average

What is the mean of a data set?

Answer

The mean is the sum of all the values divided by the number of values. It is a measure of central tendency and tells the balancing centre of the data.

Card 3Median

What is the median of a data set?

Answer

The median is the middle value when the data is arranged in order. It has an equal number of values on both sides.

Card 4मध्यिका

किसी डेटा सेट का माध्यिका क्या होता है?

Answer

माध्यक वह मध्य मान है जब आँकड़ों को क्रम में व्यवस्थित किया जाता है। इसके दोनों तरफ समान संख्या में मान होते हैं।

Card 5दो संख्याओं का माध्य

संख्या 3 और 7 का औसत क्या है?

Answer

चरण 1: संख्याओं को जोड़ें: 3 + 7 = 10. चरण 2: 2 से भाग दें: 10 / 2 = 5. तो, औसत 5 है। यह 3 और 7 के ठीक बीच में है।

Card 6Mean of two numbers

What is the average of the numbers 3 and 7?

Answer

Step 1: Add the numbers: 3 + 7 = 10. Step 2: Divide by 2: 10 / 2 = 5. So, the average is 5. It lies exactly halfway between 3 and 7.

Card 7Mean as centre

How does the mean act as a centre of data?

Answer

The mean balances the total distances of data values on both sides equally. It is not always the midpoint of the smallest and largest values; it is the balancing centre.

Card 8मध्यमान केंद्र के रूप में

माध्य डेटा के केंद्र के रूप में कैसे कार्य करता है?

Answer

माध्य, डेटा मानों की कुल दूरियों को दोनों तरफ समान रूप से संतुलित करता है। यह हमेशा सबसे छोटे और सबसे बड़े मानों का मध्यबिन्दु नहीं होता है; यह संतुलन केंद्र होता है।

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Frequently Asked Questions

What are the important topics in Tales by Dots and Lines for CBSE Class 8 Mathematics?
Tales by Dots and Lines covers several key topics that are frequently asked in CBSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Tales by Dots and Lines — CBSE Class 8 Mathematics?
Understand the core concepts first, then work through the 63 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Tales by Dots and Lines?
There are 76 flashcards for Tales by Dots and Lines covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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