Nepal Homework Resources

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आइइफोन ₹ 200 जनाले एन्द्डोइडफोन मन पराएको पाइयो। तर 25 जनाले यी दुई मघ्ये कुनैपनि फोनहरु मन नपराएको पाइयो। In a survey of 300 people, it was found that 150 people liked I-phone and 200 people like Android phone. But 25 people did not like any of these two phones. a. यदि \( I \) र \( A \) ले क्रमशः आइ़फोन र एन्द्रोइड फोन मन पराउने मानिसहरुको समूहलाई जनाउंदट भने \( \mathrm{n}(\overline{1 \cup \mathrm{~A}}) \) को गणनात्मकता लेखुहोस। If I and A denote the sets of people who like I-phone and Android Phone respectively, write the cardinality of \( n(\overline{I \cup A}) \). [1] Ans : 25 b. माधिको जानकारीलाई भेनचित्रमा प्रस्तुत गन्नुहोस्। Present the above information in a Venn-diagram. [1] c. बाइफोनमात्र मन पराउने मानिसहरकको संख्या पत्ता लगाउनुहोसा Find the number of people who liked 1-phone only. [3] Ans: 75 d. आइफोन ₹ एन्ड्रोइइ फोन दुनि मन पराउनेको संख्या ₹ यी दुई मध्ये कुनै पनि फोन मन नपराउने मानिखहलक्को संख्यार्थीच तुलना गर्नुहोस् । Compare the number of people who like both I-phone and Android phone and who do not like any of these two phones. [1] Ans: \( 3: 1 \)
Statistics Feb 13, 2025
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