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subgroup analysis MCQ Questions for Class 9

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2 questions tagged with subgroup analysis.

Question 1/2 Expert Science Exploration: Entering the World of Secondary Science Nature and meaning of science Class 9 Level 3

एक शोधकर्ता अनेक उपसमूहों का विश्लेषण करता है और केवल एक असामान्य परिणाम प्रकाशित करता है। कौन सी चिंता उचित है?

A researcher analyses many subgroups and publishes only one unusual result. Which concern is appropriate?

Explanation opens after your attempt
Correct Answer

A. संयोग से मिला परिणाम चुना गया हो सकता हैA chance result may have been selected

Step 1

Concept

With many analyses some unusual findings may occur by chance. Look for predefined subgroups and independent confirmation.

Step 2

Why this answer is correct

The correct answer is A. संयोग से मिला परिणाम चुना गया हो सकता है / A chance result may have been selected. With many analyses some unusual findings may occur by chance. Look for predefined subgroups and independent confirmation.

Step 3

Exam Tip

बहुत से विश्लेषण में कुछ असामान्य परिणाम संयोग से मिल सकते हैं। परीक्षा में पूर्व निर्धारित उपसमूह और स्वतंत्र पुष्टि देखें।

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Question 2/2 Expert Science Exploration: Entering the World of Secondary Science Nature and meaning of science Class 9 Level 3

एक अध्ययन में औसत परिणाम अच्छा था लेकिन अलग उपसमूहों में प्रभाव विपरीत थे। सबसे उचित विश्लेषण क्या है?

A study showed a favourable average result but effects were opposite in different subgroups. What is the most appropriate analysis?

Explanation opens after your attempt
Correct Answer

B. उपसमूहों के परिणाम और संभावित कारण अलग जाँचनाExamine subgroup results and possible causes separately

Step 1

Concept

An overall average may hide important differences among groups. Examine distributions and subgroups.

Step 2

Why this answer is correct

The correct answer is B. उपसमूहों के परिणाम और संभावित कारण अलग जाँचना / Examine subgroup results and possible causes separately. An overall average may hide important differences among groups. Examine distributions and subgroups.

Step 3

Exam Tip

समग्र औसत अलग समूहों की महत्वपूर्ण भिन्नता छिपा सकता है। परीक्षा में डेटा वितरण और उपसमूह देखें।

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