The mean of the range, mode and median of the observations 15, 50, 120, 6, 80, 100, 10, 8, 10, 15, 15 is :प्रेक्षणों 15, 50, 120, 6, 80, 100, 10, 8, 10, 15, 15 के परिसर, बहुलक और माध्यिका का माध्य है :

1. A48
2. B39
3. C52
4. D51

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Correct answer: A. 48

Explanation

Range = 120 − 6 = 114. Mode = 15 (occurs three times). Sorted data: 6, 8, 10, 10, 15, 15, 15, 50, 80, 100, 120; the median (6th of 11 values) = 15. Mean = (114 + 15 + 15)/3 = 144/3 = 48.परिसर = 120 − 6 = 114। बहुलक = 15 (तीन बार आया)। क्रमबद्ध आँकड़े: 6, 8, 10, 10, 15, 15, 15, 50, 80, 100, 120; माध्यिका (11 में से 6ठा मान) = 15। माध्य = (114 + 15 + 15)/3 = 144/3 = 48।