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In an investigation the range of results is very wide although the means of two groups are equal. Which information is important for the conclusion?एक जाँच में परिणामों की सीमा बहुत व्यापक है लेकिन औसत दोनों समूहों में समान है। कौन-सी जानकारी निष्कर्ष के लिए महत्वपूर्ण होगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Spread of results and sample sizeपरिणामों का प्रसार और नमूना आकार
A wide spread indicates uncertainty even when the means are equal. In exams examine distribution as well as the mean.समान औसत के बावजूद व्यापक प्रसार समूहों की अनिश्चितता दिखाता है। परीक्षा में केवल औसत नहीं बल्कि वितरण भी देखें।
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