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प्रश्न
If the standard deviation of a data is 3.6 and each value of the data is divided by 3, then find the new variance and new standard deviation
बेरीज
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उत्तर
The standard deviation of the data = 3.6
Each value of the data is divided by 3
New standard deviation = `3.6/3` = 1.2
New Variance = (1.2)2 = 1.44 ...[∴ Variance = (S.D)2]
New standard Deviation = 1.2
New variance = 1.44
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