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20 परिणामों का औसत 18 है। प्रत्येक परिणाम में से 3घटाने पर नया औसत क्या होगा? |
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Answer» GIVEN : 20 परिणामों का औसत 18 है। AVERAGE of 20 results is 18 To Find : प्रत्येक परिणाम में से 3 घटाने पर नया औसत 3 is subtracted from each result , find new average Solution: Average = (sum of all observations ) / ( number of observations ) => 18 = sum of all observations / 20 => sum of all observations = 360 3 is subtracted from each result Hence 20 * 3 = 60 subtracted New Sum of all observations = 360 - 60 = 300 New Average = 300/20 = 15 20 परिणामों का औसत 18 है। प्रत्येक परिणाम में से 3 घटाने पर नया औसत 15 होगा Short cut : 18 - 3 = 15 Learn More : Arithmetic mean of nine OBSERVATION is calculated as 38 . But in ... 17. As a sales gimmick, a merchant began measuring with a metric ... |
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