The standard deviation's numerical value is always positive.
What is meant by standard deviation?
- The square root of the variance is used to calculate the standard deviation, a statistic that gauges a dataset's dispersion from its mean.
- The variation from the mean of each data point is used to determine the standard deviation, which is equal to the square root of variance. Your dataset's average level of variability is represented by the standard deviation.
- It reveals, on average, how far away from the mean each value is. A low standard deviation denotes that values are grouped close to the mean, whereas a large standard deviation shows that values are often far from the mean.
- Standard deviation, which is the square root of the means of the squared departures from the arithmetic mean, is also known as root-mean square deviation.
Therefore, the correct option is b) negative
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