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representative data MCQ Questions for Class 9

representative data se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with representative data.

Question 1/2 Expert Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 6

एक छात्र ने केवल एक दिन पक्षियों की संख्या गिनी और पूरे वर्ष के लिए निष्कर्ष दे दिया। मुख्य समस्या क्या है?

A student counted birds on only one day and drew a conclusion for the whole year. What is the main problem?

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Correct Answer

B. नमूना समय का प्रतिनिधित्व नहीं करताThe sampling time is not representative

Step 1

Concept

One day's data do not represent seasonal and daily variations. Observe at multiple times to obtain a representative sample.

Step 2

Why this answer is correct

The correct answer is B. नमूना समय का प्रतिनिधित्व नहीं करता / The sampling time is not representative. One day's data do not represent seasonal and daily variations. Observe at multiple times to obtain a representative sample.

Step 3

Exam Tip

एक दिन का आँकड़ा मौसमी और दैनिक बदलावों को नहीं दर्शाता। प्रतिनिधि नमूना लेने के लिए कई समयों पर प्रेक्षण करें।

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Question 2/2 Medium Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 6

वैज्ञानिक जाँच में नमूने की संख्या बढ़ाने से क्या लाभ होता है?

What is the benefit of increasing the sample size in a scientific investigation?

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Correct Answer

B. निष्कर्ष अधिक प्रतिनिधिक बन सकता हैThe conclusion can become more representative

Step 1

Concept

A larger sample reduces the effect of individual variation and gives better representation. In exams connect sample size with reliability.

Step 2

Why this answer is correct

The correct answer is B. निष्कर्ष अधिक प्रतिनिधिक बन सकता है / The conclusion can become more representative. A larger sample reduces the effect of individual variation and gives better representation. In exams connect sample size with reliability.

Step 3

Exam Tip

बड़ा नमूना व्यक्तिगत भिन्नताओं का प्रभाव कम करके बेहतर प्रतिनिधित्व देता है। परीक्षा में नमूना आकार को विश्वसनीयता से जोड़ें।

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