Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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If the mean and coefficient of variation of a data are 15 and 48 respectively, then find the value of standard deviation. - Mathematics

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Sum

If the mean and coefficient of variation of a data are 15 and 48 respectively, then find the value of standard deviation.

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Solution

Mean `(barx)` = 15

Coefficient of variation = 48

`sigma/(barx) xx 100` = 48

⇒`sigma/15 xx 100` = 48

σ × 100 = 48 × 15

σ = `(48 xx 15)/100`

= `720/100`

= 7.2

Standard deviation (σ) = 7.2

Concept: Coefficient of Variation
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APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 10th SSLC Mathematics Answers Guide
Chapter 8 Statistics and Probability
Exercise 8.2 | Q 3 | Page 316
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