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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 - Mathematics

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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

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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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पाठ 8: Statistics and Probability - Exercise 8.1 [पृष्ठ ३१३]

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सामाचीर कलवी Mathematics [English] Class 10 SSLC TN Board
पाठ 8 Statistics and Probability
Exercise 8.1 | Q 9 | पृष्ठ ३१३
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