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प्रश्न
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Increased by 60%
योग
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उत्तर
Given that the mean of 15 observations is 32
resulting mean increased by 60%
= 32 + `( 60) / ( 100 ) xx 32`
= 32 + 19.2
= 51.2
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Properties of Mean
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