SSC CGL Tier-1 practice question
The mode and median of a data is 26.7 and 71, respectively. What is the mean of the data? (Use empirical formula.)
From a SSC CGL Tier-1 General Awareness practice set · General Awareness
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Correct answer: (B) 93.2
Empirical formula: Mode = 3×Median − 2×Mean. So 26.7 = 3×71 − 2×Mean → 26.7 = 213 − 2×Mean → 2×Mean = 186.3 → Mean = 93.15 ≈ 93.2.
हिंदी में प्रश्न
किसी आँकड़े का बहुलक और माध्यिका क्रमशः 26.7 और 71 है। आँकड़े का माध्य क्या है? (अनुभवजन्य सूत्र का प्रयोग करें।)
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उत्तर और व्याख्या देखें
सही उत्तर: (B) 93.2
अनुभवजन्य सूत्र: बहुलक = 3×माध्यिका − 2×माध्य। अतः 26.7 = 3×71 − 2×माध्य → 26.7 = 213 − 2×माध्य → 2×माध्य = 186.3 → माध्य = 93.15 ≈ 93.2।
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